diff --git a/src/dawn_native/BindGroup.h b/src/dawn_native/BindGroup.h
index 2361f8897a..2a26b43688 100644
--- a/src/dawn_native/BindGroup.h
+++ b/src/dawn_native/BindGroup.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_BINDGROUP_H_
-#define BACKEND_BINDGROUP_H_
+#ifndef DAWNNATIVE_BINDGROUP_H_
+#define DAWNNATIVE_BINDGROUP_H_
 
 #include "common/Constants.h"
 #include "dawn_native/BindGroupLayout.h"
@@ -93,4 +93,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_BINDGROUP_H_
+#endif  // DAWNNATIVE_BINDGROUP_H_
diff --git a/src/dawn_native/BindGroupLayout.h b/src/dawn_native/BindGroupLayout.h
index 2f332e455f..0d5f9389aa 100644
--- a/src/dawn_native/BindGroupLayout.h
+++ b/src/dawn_native/BindGroupLayout.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_BINDGROUPLAYOUT_H_
-#define BACKEND_BINDGROUPLAYOUT_H_
+#ifndef DAWNNATIVE_BINDGROUPLAYOUT_H_
+#define DAWNNATIVE_BINDGROUPLAYOUT_H_
 
 #include "common/Constants.h"
 #include "dawn_native/Error.h"
@@ -63,4 +63,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_BINDGROUPLAYOUT_H_
+#endif  // DAWNNATIVE_BINDGROUPLAYOUT_H_
diff --git a/src/dawn_native/BlendState.h b/src/dawn_native/BlendState.h
index 16e054ebb3..4012d31895 100644
--- a/src/dawn_native/BlendState.h
+++ b/src/dawn_native/BlendState.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_BLENDSTATE_H_
-#define BACKEND_BLENDSTATE_H_
+#ifndef DAWNNATIVE_BLENDSTATE_H_
+#define DAWNNATIVE_BLENDSTATE_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Forward.h"
@@ -72,4 +72,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_BLENDSTATE_H_
+#endif  // DAWNNATIVE_BLENDSTATE_H_
diff --git a/src/dawn_native/Buffer.h b/src/dawn_native/Buffer.h
index 7183a010da..9fda88184c 100644
--- a/src/dawn_native/Buffer.h
+++ b/src/dawn_native/Buffer.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_BUFFER_H_
-#define BACKEND_BUFFER_H_
+#ifndef DAWNNATIVE_BUFFER_H_
+#define DAWNNATIVE_BUFFER_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Error.h"
@@ -139,4 +139,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_BUFFER_H_
+#endif  // DAWNNATIVE_BUFFER_H_
diff --git a/src/dawn_native/Builder.h b/src/dawn_native/Builder.h
index 622c8cc3ab..52eb5c8ae4 100644
--- a/src/dawn_native/Builder.h
+++ b/src/dawn_native/Builder.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_BUILDER_H_
-#define BACKEND_BUILDER_H_
+#ifndef DAWNNATIVE_BUILDER_H_
+#define DAWNNATIVE_BUILDER_H_
 
 #include "dawn_native/Forward.h"
 #include "dawn_native/RefCounted.h"
@@ -104,4 +104,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_BUILDER_H_
+#endif  // DAWNNATIVE_BUILDER_H_
diff --git a/src/dawn_native/CommandAllocator.h b/src/dawn_native/CommandAllocator.h
index 244275acb9..d39176a82c 100644
--- a/src/dawn_native/CommandAllocator.h
+++ b/src/dawn_native/CommandAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_COMMAND_ALLOCATOR_H_
-#define BACKEND_COMMAND_ALLOCATOR_H_
+#ifndef DAWNNATIVE_COMMAND_ALLOCATOR_H_
+#define DAWNNATIVE_COMMAND_ALLOCATOR_H_
 
 #include <cstddef>
 #include <cstdint>
@@ -147,4 +147,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_COMMAND_ALLOCATOR_H_
+#endif  // DAWNNATIVE_COMMAND_ALLOCATOR_H_
diff --git a/src/dawn_native/CommandBuffer.h b/src/dawn_native/CommandBuffer.h
index 5e6464c135..a42ac96d97 100644
--- a/src/dawn_native/CommandBuffer.h
+++ b/src/dawn_native/CommandBuffer.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_COMMANDBUFFER_H_
-#define BACKEND_COMMANDBUFFER_H_
+#ifndef DAWNNATIVE_COMMANDBUFFER_H_
+#define DAWNNATIVE_COMMANDBUFFER_H_
 
 #include "dawn/dawncpp.h"
 
@@ -148,4 +148,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_COMMANDBUFFER_H_
+#endif  // DAWNNATIVE_COMMANDBUFFER_H_
diff --git a/src/dawn_native/CommandBufferStateTracker.h b/src/dawn_native/CommandBufferStateTracker.h
index e5793f5f9f..3dc29065d2 100644
--- a/src/dawn_native/CommandBufferStateTracker.h
+++ b/src/dawn_native/CommandBufferStateTracker.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_COMMANDBUFFERSTATETRACKER_H
-#define BACKEND_COMMANDBUFFERSTATETRACKER_H
+#ifndef DAWNNATIVE_COMMANDBUFFERSTATETRACKER_H
+#define DAWNNATIVE_COMMANDBUFFERSTATETRACKER_H
 
 #include "common/Constants.h"
 #include "dawn_native/CommandBuffer.h"
@@ -60,4 +60,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_COMMANDBUFFERSTATETRACKER_H
+#endif  // DAWNNATIVE_COMMANDBUFFERSTATETRACKER_H
diff --git a/src/dawn_native/Commands.h b/src/dawn_native/Commands.h
index f47cf498ed..839245c820 100644
--- a/src/dawn_native/Commands.h
+++ b/src/dawn_native/Commands.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_COMMANDS_H_
-#define BACKEND_COMMANDS_H_
+#ifndef DAWNNATIVE_COMMANDS_H_
+#define DAWNNATIVE_COMMANDS_H_
 
 #include "dawn_native/RenderPassDescriptor.h"
 #include "dawn_native/Texture.h"
@@ -160,4 +160,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_COMMANDS_H_
+#endif  // DAWNNATIVE_COMMANDS_H_
diff --git a/src/dawn_native/ComputePipeline.h b/src/dawn_native/ComputePipeline.h
index fc43825cbb..526891a510 100644
--- a/src/dawn_native/ComputePipeline.h
+++ b/src/dawn_native/ComputePipeline.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_COMPUTEPIPELINE_H_
-#define BACKEND_COMPUTEPIPELINE_H_
+#ifndef DAWNNATIVE_COMPUTEPIPELINE_H_
+#define DAWNNATIVE_COMPUTEPIPELINE_H_
 
 #include "dawn_native/Pipeline.h"
 
@@ -34,4 +34,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_COMPUTEPIPELINE_H_
+#endif  // DAWNNATIVE_COMPUTEPIPELINE_H_
diff --git a/src/dawn_native/DepthStencilState.h b/src/dawn_native/DepthStencilState.h
index d0a7b81d3a..b5e56264db 100644
--- a/src/dawn_native/DepthStencilState.h
+++ b/src/dawn_native/DepthStencilState.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_DEPTHSTENCILSTATE_H_
-#define BACKEND_DEPTHSTENCILSTATE_H_
+#ifndef DAWNNATIVE_DEPTHSTENCILSTATE_H_
+#define DAWNNATIVE_DEPTHSTENCILSTATE_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Forward.h"
@@ -82,4 +82,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_DEPTHSTENCILSTATE_H_
+#endif  // DAWNNATIVE_DEPTHSTENCILSTATE_H_
diff --git a/src/dawn_native/Device.h b/src/dawn_native/Device.h
index 8750bb43d5..1a40a85ceb 100644
--- a/src/dawn_native/Device.h
+++ b/src/dawn_native/Device.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_DEVICEBASE_H_
-#define BACKEND_DEVICEBASE_H_
+#ifndef DAWNNATIVE_DEVICEBASE_H_
+#define DAWNNATIVE_DEVICEBASE_H_
 
 #include "dawn_native/Error.h"
 #include "dawn_native/Forward.h"
@@ -135,4 +135,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_DEVICEBASE_H_
+#endif  // DAWNNATIVE_DEVICEBASE_H_
diff --git a/src/dawn_native/Error.h b/src/dawn_native/Error.h
index 5d02869419..7d718a8a84 100644
--- a/src/dawn_native/Error.h
+++ b/src/dawn_native/Error.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_ERROR_H_
-#define BACKEND_ERROR_H_
+#ifndef DAWNNATIVE_ERROR_H_
+#define DAWNNATIVE_ERROR_H_
 
 #include "common/Result.h"
 
@@ -88,4 +88,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_ERROR_H_
+#endif  // DAWNNATIVE_ERROR_H_
diff --git a/src/dawn_native/ErrorData.h b/src/dawn_native/ErrorData.h
index e70c9d7f18..2e26d578be 100644
--- a/src/dawn_native/ErrorData.h
+++ b/src/dawn_native/ErrorData.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_ERRORDATA_H_
-#define BACKEND_ERRORDATA_H_
+#ifndef DAWNNATIVE_ERRORDATA_H_
+#define DAWNNATIVE_ERRORDATA_H_
 
 #include <string>
 #include <vector>
@@ -42,4 +42,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_ERRORDATA_H_
+#endif  // DAWNNATIVE_ERRORDATA_H_
diff --git a/src/dawn_native/Forward.h b/src/dawn_native/Forward.h
index 8826f2b699..7f86640fb6 100644
--- a/src/dawn_native/Forward.h
+++ b/src/dawn_native/Forward.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_FORWARD_H_
-#define BACKEND_FORWARD_H_
+#ifndef DAWNNATIVE_FORWARD_H_
+#define DAWNNATIVE_FORWARD_H_
 
 #include <cstdint>
 
@@ -65,4 +65,4 @@ namespace backend {
     enum PushConstantType : uint8_t;
 }  // namespace backend
 
-#endif  // BACKEND_FORWARD_H_
+#endif  // DAWNNATIVE_FORWARD_H_
diff --git a/src/dawn_native/InputState.h b/src/dawn_native/InputState.h
index d3751594ea..d0fb19c92e 100644
--- a/src/dawn_native/InputState.h
+++ b/src/dawn_native/InputState.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_INPUTSTATE_H_
-#define BACKEND_INPUTSTATE_H_
+#ifndef DAWNNATIVE_INPUTSTATE_H_
+#define DAWNNATIVE_INPUTSTATE_H_
 
 #include "common/Constants.h"
 #include "dawn_native/Builder.h"
@@ -83,4 +83,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_INPUTSTATE_H_
+#endif  // DAWNNATIVE_INPUTSTATE_H_
diff --git a/src/dawn_native/PassResourceUsage.h b/src/dawn_native/PassResourceUsage.h
index 585c541db6..a9b88575e1 100644
--- a/src/dawn_native/PassResourceUsage.h
+++ b/src/dawn_native/PassResourceUsage.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_PASSRESOURCEUSAGE_H
-#define BACKEND_PASSRESOURCEUSAGE_H
+#ifndef DAWNNATIVE_PASSRESOURCEUSAGE_H
+#define DAWNNATIVE_PASSRESOURCEUSAGE_H
 
 #include "dawn/dawncpp.h"
 
@@ -37,4 +37,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_PASSRESOURCEUSAGE_H
+#endif  // DAWNNATIVE_PASSRESOURCEUSAGE_H
diff --git a/src/dawn_native/PerStage.h b/src/dawn_native/PerStage.h
index 10d946af2a..411d5db5c0 100644
--- a/src/dawn_native/PerStage.h
+++ b/src/dawn_native/PerStage.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_PERSTAGE_H_
-#define BACKEND_PERSTAGE_H_
+#ifndef DAWNNATIVE_PERSTAGE_H_
+#define DAWNNATIVE_PERSTAGE_H_
 
 #include "common/Assert.h"
 #include "common/BitSetIterator.h"
@@ -74,4 +74,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_PERSTAGE_H_
+#endif  // DAWNNATIVE_PERSTAGE_H_
diff --git a/src/dawn_native/Pipeline.h b/src/dawn_native/Pipeline.h
index 0bd8ffc6c1..1460e1cf5d 100644
--- a/src/dawn_native/Pipeline.h
+++ b/src/dawn_native/Pipeline.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_PIPELINE_H_
-#define BACKEND_PIPELINE_H_
+#ifndef DAWNNATIVE_PIPELINE_H_
+#define DAWNNATIVE_PIPELINE_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Forward.h"
@@ -82,4 +82,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_PIPELINE_H_
+#endif  // DAWNNATIVE_PIPELINE_H_
diff --git a/src/dawn_native/PipelineLayout.h b/src/dawn_native/PipelineLayout.h
index 4b2d843832..c165c1c48d 100644
--- a/src/dawn_native/PipelineLayout.h
+++ b/src/dawn_native/PipelineLayout.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_PIPELINELAYOUT_H_
-#define BACKEND_PIPELINELAYOUT_H_
+#ifndef DAWNNATIVE_PIPELINELAYOUT_H_
+#define DAWNNATIVE_PIPELINELAYOUT_H_
 
 #include "common/Constants.h"
 #include "dawn_native/Error.h"
@@ -57,4 +57,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_PIPELINELAYOUT_H_
+#endif  // DAWNNATIVE_PIPELINELAYOUT_H_
diff --git a/src/dawn_native/Queue.h b/src/dawn_native/Queue.h
index cd01e55bb2..9db85e6c65 100644
--- a/src/dawn_native/Queue.h
+++ b/src/dawn_native/Queue.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_QUEUE_H_
-#define BACKEND_QUEUE_H_
+#ifndef DAWNNATIVE_QUEUE_H_
+#define DAWNNATIVE_QUEUE_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Error.h"
@@ -49,4 +49,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_QUEUE_H_
+#endif  // DAWNNATIVE_QUEUE_H_
diff --git a/src/dawn_native/RefCounted.h b/src/dawn_native/RefCounted.h
index a0a3e87ff0..1e9557f17a 100644
--- a/src/dawn_native/RefCounted.h
+++ b/src/dawn_native/RefCounted.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_REFCOUNTED_H_
-#define BACKEND_REFCOUNTED_H_
+#ifndef DAWNNATIVE_REFCOUNTED_H_
+#define DAWNNATIVE_REFCOUNTED_H_
 
 #include <cstdint>
 
@@ -126,4 +126,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_REFCOUNTED_H_
+#endif  // DAWNNATIVE_REFCOUNTED_H_
diff --git a/src/dawn_native/RenderPassDescriptor.h b/src/dawn_native/RenderPassDescriptor.h
index f38bd73c05..9e0d21d491 100644
--- a/src/dawn_native/RenderPassDescriptor.h
+++ b/src/dawn_native/RenderPassDescriptor.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_RENDERPASSDESCRIPTOR_H_
-#define BACKEND_RENDERPASSDESCRIPTOR_H_
+#ifndef DAWNNATIVE_RENDERPASSDESCRIPTOR_H_
+#define DAWNNATIVE_RENDERPASSDESCRIPTOR_H_
 
 #include "common/Constants.h"
 #include "dawn_native/Builder.h"
@@ -106,4 +106,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_RENDERPASS_H_
+#endif  // DAWNNATIVE_RENDERPASS_H_
diff --git a/src/dawn_native/RenderPipeline.h b/src/dawn_native/RenderPipeline.h
index 44bb0be48d..a5cdc1ab3e 100644
--- a/src/dawn_native/RenderPipeline.h
+++ b/src/dawn_native/RenderPipeline.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_RENDERPIPELINE_H_
-#define BACKEND_RENDERPIPELINE_H_
+#ifndef DAWNNATIVE_RENDERPIPELINE_H_
+#define DAWNNATIVE_RENDERPIPELINE_H_
 
 #include "dawn_native/BlendState.h"
 #include "dawn_native/DepthStencilState.h"
@@ -93,4 +93,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_RENDERPIPELINE_H_
+#endif  // DAWNNATIVE_RENDERPIPELINE_H_
diff --git a/src/dawn_native/Sampler.h b/src/dawn_native/Sampler.h
index 0ccaa4e86e..816db69558 100644
--- a/src/dawn_native/Sampler.h
+++ b/src/dawn_native/Sampler.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_SAMPLER_H_
-#define BACKEND_SAMPLER_H_
+#ifndef DAWNNATIVE_SAMPLER_H_
+#define DAWNNATIVE_SAMPLER_H_
 
 #include "dawn_native/Error.h"
 #include "dawn_native/RefCounted.h"
@@ -34,4 +34,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_SAMPLER_H_
+#endif  // DAWNNATIVE_SAMPLER_H_
diff --git a/src/dawn_native/ShaderModule.h b/src/dawn_native/ShaderModule.h
index 801ba35670..3084104e02 100644
--- a/src/dawn_native/ShaderModule.h
+++ b/src/dawn_native/ShaderModule.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_SHADERMODULE_H_
-#define BACKEND_SHADERMODULE_H_
+#ifndef DAWNNATIVE_SHADERMODULE_H_
+#define DAWNNATIVE_SHADERMODULE_H_
 
 #include "common/Constants.h"
 #include "dawn_native/Builder.h"
@@ -94,4 +94,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_SHADERMODULE_H_
+#endif  // DAWNNATIVE_SHADERMODULE_H_
diff --git a/src/dawn_native/SwapChain.h b/src/dawn_native/SwapChain.h
index dfc39f417d..5c751ce889 100644
--- a/src/dawn_native/SwapChain.h
+++ b/src/dawn_native/SwapChain.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_SWAPCHAIN_H_
-#define BACKEND_SWAPCHAIN_H_
+#ifndef DAWNNATIVE_SWAPCHAIN_H_
+#define DAWNNATIVE_SWAPCHAIN_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Forward.h"
@@ -70,4 +70,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_SWAPCHAIN_H_
+#endif  // DAWNNATIVE_SWAPCHAIN_H_
diff --git a/src/dawn_native/Texture.h b/src/dawn_native/Texture.h
index c0165afe51..28c11ccc99 100644
--- a/src/dawn_native/Texture.h
+++ b/src/dawn_native/Texture.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_TEXTURE_H_
-#define BACKEND_TEXTURE_H_
+#ifndef DAWNNATIVE_TEXTURE_H_
+#define DAWNNATIVE_TEXTURE_H_
 
 #include "dawn_native/Builder.h"
 #include "dawn_native/Forward.h"
@@ -113,4 +113,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_TEXTURE_H_
+#endif  // DAWNNATIVE_TEXTURE_H_
diff --git a/src/dawn_native/ToBackend.h b/src/dawn_native/ToBackend.h
index 903a675ebc..7cb0d43481 100644
--- a/src/dawn_native/ToBackend.h
+++ b/src/dawn_native/ToBackend.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_TOBACKEND_H_
-#define BACKEND_TOBACKEND_H_
+#ifndef DAWNNATIVE_TOBACKEND_H_
+#define DAWNNATIVE_TOBACKEND_H_
 
 #include "dawn_native/Forward.h"
 
@@ -151,4 +151,4 @@ namespace backend {
 
 }  // namespace backend
 
-#endif  // BACKEND_TOBACKEND_H_
+#endif  // DAWNNATIVE_TOBACKEND_H_
diff --git a/src/dawn_native/d3d12/BindGroupD3D12.h b/src/dawn_native/d3d12/BindGroupD3D12.h
index 3ab28ad164..ae2ab74b19 100644
--- a/src/dawn_native/d3d12/BindGroupD3D12.h
+++ b/src/dawn_native/d3d12/BindGroupD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_BINDGROUPD3D12_H_
-#define BACKEND_D3D12_BINDGROUPD3D12_H_
+#ifndef DAWNNATIVE_D3D12_BINDGROUPD3D12_H_
+#define DAWNNATIVE_D3D12_BINDGROUPD3D12_H_
 
 #include "dawn_native/BindGroup.h"
 
@@ -49,4 +49,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_BINDGROUPD3D12_H_
+#endif  // DAWNNATIVE_D3D12_BINDGROUPD3D12_H_
diff --git a/src/dawn_native/d3d12/BindGroupLayoutD3D12.h b/src/dawn_native/d3d12/BindGroupLayoutD3D12.h
index fa6f93ea31..8189da07df 100644
--- a/src/dawn_native/d3d12/BindGroupLayoutD3D12.h
+++ b/src/dawn_native/d3d12/BindGroupLayoutD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_BINDGROUPLAYOUTD3D12_H_
-#define BACKEND_D3D12_BINDGROUPLAYOUTD3D12_H_
+#ifndef DAWNNATIVE_D3D12_BINDGROUPLAYOUTD3D12_H_
+#define DAWNNATIVE_D3D12_BINDGROUPLAYOUTD3D12_H_
 
 #include "dawn_native/BindGroupLayout.h"
 
@@ -51,4 +51,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_BINDGROUPLAYOUTD3D12_H_
+#endif  // DAWNNATIVE_D3D12_BINDGROUPLAYOUTD3D12_H_
diff --git a/src/dawn_native/d3d12/BlendStateD3D12.h b/src/dawn_native/d3d12/BlendStateD3D12.h
index 641beb5c66..938189e3ce 100644
--- a/src/dawn_native/d3d12/BlendStateD3D12.h
+++ b/src/dawn_native/d3d12/BlendStateD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_BLENDSTATED3D12_H_
-#define BACKEND_D3D12_BLENDSTATED3D12_H_
+#ifndef DAWNNATIVE_D3D12_BLENDSTATED3D12_H_
+#define DAWNNATIVE_D3D12_BLENDSTATED3D12_H_
 
 #include "dawn_native/BlendState.h"
 
@@ -33,4 +33,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_BLENDSTATED3D12_H_
+#endif  // DAWNNATIVE_D3D12_BLENDSTATED3D12_H_
diff --git a/src/dawn_native/d3d12/BufferD3D12.h b/src/dawn_native/d3d12/BufferD3D12.h
index 760c706e7d..d5ddfe21af 100644
--- a/src/dawn_native/d3d12/BufferD3D12.h
+++ b/src/dawn_native/d3d12/BufferD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_BUFFERD3D12_H_
-#define BACKEND_D3D12_BUFFERD3D12_H_
+#ifndef DAWNNATIVE_D3D12_BUFFERD3D12_H_
+#define DAWNNATIVE_D3D12_BUFFERD3D12_H_
 
 #include "common/SerialQueue.h"
 #include "dawn_native/Buffer.h"
@@ -84,4 +84,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_BUFFERD3D12_H_
+#endif  // DAWNNATIVE_D3D12_BUFFERD3D12_H_
diff --git a/src/dawn_native/d3d12/CommandAllocatorManager.h b/src/dawn_native/d3d12/CommandAllocatorManager.h
index eef8deeb30..ec45ee6daf 100644
--- a/src/dawn_native/d3d12/CommandAllocatorManager.h
+++ b/src/dawn_native/d3d12/CommandAllocatorManager.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_COMMANDALLOCATORMANAGER_H_
-#define BACKEND_D3D12_COMMANDALLOCATORMANAGER_H_
+#ifndef DAWNNATIVE_D3D12_COMMANDALLOCATORMANAGER_H_
+#define DAWNNATIVE_D3D12_COMMANDALLOCATORMANAGER_H_
 
 #include "dawn_native/d3d12/d3d12_platform.h"
 
@@ -53,4 +53,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_COMMANDALLOCATORMANAGER_H_
+#endif  // DAWNNATIVE_D3D12_COMMANDALLOCATORMANAGER_H_
diff --git a/src/dawn_native/d3d12/CommandBufferD3D12.h b/src/dawn_native/d3d12/CommandBufferD3D12.h
index 3fab298daf..db4655aa01 100644
--- a/src/dawn_native/d3d12/CommandBufferD3D12.h
+++ b/src/dawn_native/d3d12/CommandBufferD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_COMMANDBUFFERD3D12_H_
-#define BACKEND_D3D12_COMMANDBUFFERD3D12_H_
+#ifndef DAWNNATIVE_D3D12_COMMANDBUFFERD3D12_H_
+#define DAWNNATIVE_D3D12_COMMANDBUFFERD3D12_H_
 
 #include "dawn_native/CommandAllocator.h"
 #include "dawn_native/CommandBuffer.h"
@@ -47,4 +47,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_COMMANDBUFFERD3D12_H_
+#endif  // DAWNNATIVE_D3D12_COMMANDBUFFERD3D12_H_
diff --git a/src/dawn_native/d3d12/ComputePipelineD3D12.h b/src/dawn_native/d3d12/ComputePipelineD3D12.h
index ded4eafebb..a35a13e7e2 100644
--- a/src/dawn_native/d3d12/ComputePipelineD3D12.h
+++ b/src/dawn_native/d3d12/ComputePipelineD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_COMPUTEPIPELINED3D12_H_
-#define BACKEND_D3D12_COMPUTEPIPELINED3D12_H_
+#ifndef DAWNNATIVE_D3D12_COMPUTEPIPELINED3D12_H_
+#define DAWNNATIVE_D3D12_COMPUTEPIPELINED3D12_H_
 
 #include "dawn_native/ComputePipeline.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_COMPUTEPIPELINED3D12_H_
+#endif  // DAWNNATIVE_D3D12_COMPUTEPIPELINED3D12_H_
diff --git a/src/dawn_native/d3d12/DepthStencilStateD3D12.h b/src/dawn_native/d3d12/DepthStencilStateD3D12.h
index b87b69ce7e..5db9c38794 100644
--- a/src/dawn_native/d3d12/DepthStencilStateD3D12.h
+++ b/src/dawn_native/d3d12/DepthStencilStateD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_DEPTHSTENCILSTATED3D12_H_
-#define BACKEND_D3D12_DEPTHSTENCILSTATED3D12_H_
+#ifndef DAWNNATIVE_D3D12_DEPTHSTENCILSTATED3D12_H_
+#define DAWNNATIVE_D3D12_DEPTHSTENCILSTATED3D12_H_
 
 #include "dawn_native/DepthStencilState.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_DEPTHSTENCILSTATED3D12_H_
+#endif  // DAWNNATIVE_D3D12_DEPTHSTENCILSTATED3D12_H_
diff --git a/src/dawn_native/d3d12/DescriptorHeapAllocator.h b/src/dawn_native/d3d12/DescriptorHeapAllocator.h
index 2aaf5557c5..e79c299fae 100644
--- a/src/dawn_native/d3d12/DescriptorHeapAllocator.h
+++ b/src/dawn_native/d3d12/DescriptorHeapAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_DESCRIPTORHEAPALLOCATOR_H_
-#define BACKEND_D3D12_DESCRIPTORHEAPALLOCATOR_H_
+#ifndef DAWNNATIVE_D3D12_DESCRIPTORHEAPALLOCATOR_H_
+#define DAWNNATIVE_D3D12_DESCRIPTORHEAPALLOCATOR_H_
 
 #include "dawn_native/d3d12/d3d12_platform.h"
 
@@ -80,4 +80,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_DESCRIPTORHEAPALLOCATOR_H_
+#endif  // DAWNNATIVE_D3D12_DESCRIPTORHEAPALLOCATOR_H_
diff --git a/src/dawn_native/d3d12/DeviceD3D12.h b/src/dawn_native/d3d12/DeviceD3D12.h
index dd2869f6da..f666397a3b 100644
--- a/src/dawn_native/d3d12/DeviceD3D12.h
+++ b/src/dawn_native/d3d12/DeviceD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_DEVICED3D12_H_
-#define BACKEND_D3D12_DEVICED3D12_H_
+#ifndef DAWNNATIVE_D3D12_DEVICED3D12_H_
+#define DAWNNATIVE_D3D12_DEVICED3D12_H_
 
 #include "dawn/dawncpp.h"
 
@@ -110,4 +110,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_DEVICED3D12_H_
+#endif  // DAWNNATIVE_D3D12_DEVICED3D12_H_
diff --git a/src/dawn_native/d3d12/Forward.h b/src/dawn_native/d3d12/Forward.h
index 4751453500..03562bff95 100644
--- a/src/dawn_native/d3d12/Forward.h
+++ b/src/dawn_native/d3d12/Forward.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_FORWARD_H_
-#define BACKEND_D3D12_FORWARD_H_
+#ifndef DAWNNATIVE_D3D12_FORWARD_H_
+#define DAWNNATIVE_D3D12_FORWARD_H_
 
 #include "dawn_native/ToBackend.h"
 
@@ -68,4 +68,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_FORWARD_H_
+#endif  // DAWNNATIVE_D3D12_FORWARD_H_
diff --git a/src/dawn_native/d3d12/InputStateD3D12.h b/src/dawn_native/d3d12/InputStateD3D12.h
index 580ef6ac59..35a3e0cae7 100644
--- a/src/dawn_native/d3d12/InputStateD3D12.h
+++ b/src/dawn_native/d3d12/InputStateD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_INPUTSTATED3D12_H_
-#define BACKEND_D3D12_INPUTSTATED3D12_H_
+#ifndef DAWNNATIVE_D3D12_INPUTSTATED3D12_H_
+#define DAWNNATIVE_D3D12_INPUTSTATED3D12_H_
 
 #include "dawn_native/InputState.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_INPUTSTATED3D12_H_
+#endif  // DAWNNATIVE_D3D12_INPUTSTATED3D12_H_
diff --git a/src/dawn_native/d3d12/NativeSwapChainImplD3D12.h b/src/dawn_native/d3d12/NativeSwapChainImplD3D12.h
index a8212536b1..80d3778f6e 100644
--- a/src/dawn_native/d3d12/NativeSwapChainImplD3D12.h
+++ b/src/dawn_native/d3d12/NativeSwapChainImplD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_NATIVESWAPCHAINIMPLD3D12_H_
-#define BACKEND_D3D12_NATIVESWAPCHAINIMPLD3D12_H_
+#ifndef DAWNNATIVE_D3D12_NATIVESWAPCHAINIMPLD3D12_H_
+#define DAWNNATIVE_D3D12_NATIVESWAPCHAINIMPLD3D12_H_
 
 #include "dawn_native/d3d12/d3d12_platform.h"
 
@@ -55,4 +55,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_NATIVESWAPCHAINIMPLD3D12_H_
+#endif  // DAWNNATIVE_D3D12_NATIVESWAPCHAINIMPLD3D12_H_
diff --git a/src/dawn_native/d3d12/PipelineLayoutD3D12.h b/src/dawn_native/d3d12/PipelineLayoutD3D12.h
index f343fa2f64..8fb0913cbf 100644
--- a/src/dawn_native/d3d12/PipelineLayoutD3D12.h
+++ b/src/dawn_native/d3d12/PipelineLayoutD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_PIPELINELAYOUTD3D12_H_
-#define BACKEND_D3D12_PIPELINELAYOUTD3D12_H_
+#ifndef DAWNNATIVE_D3D12_PIPELINELAYOUTD3D12_H_
+#define DAWNNATIVE_D3D12_PIPELINELAYOUTD3D12_H_
 
 #include "dawn_native/PipelineLayout.h"
 
@@ -41,4 +41,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_PIPELINELAYOUTD3D12_H_
+#endif  // DAWNNATIVE_D3D12_PIPELINELAYOUTD3D12_H_
diff --git a/src/dawn_native/d3d12/QueueD3D12.h b/src/dawn_native/d3d12/QueueD3D12.h
index d78a0b3709..dfe6ddbdca 100644
--- a/src/dawn_native/d3d12/QueueD3D12.h
+++ b/src/dawn_native/d3d12/QueueD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_QUEUED3D12_H_
-#define BACKEND_D3D12_QUEUED3D12_H_
+#ifndef DAWNNATIVE_D3D12_QUEUED3D12_H_
+#define DAWNNATIVE_D3D12_QUEUED3D12_H_
 
 #include "dawn_native/Queue.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_QUEUED3D12_H_
+#endif  // DAWNNATIVE_D3D12_QUEUED3D12_H_
diff --git a/src/dawn_native/d3d12/RenderPassDescriptorD3D12.h b/src/dawn_native/d3d12/RenderPassDescriptorD3D12.h
index 0622ce49e1..5e96c8ec5c 100644
--- a/src/dawn_native/d3d12/RenderPassDescriptorD3D12.h
+++ b/src/dawn_native/d3d12/RenderPassDescriptorD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_RENDERPASSDESCRIPTORD3D12_H_
-#define BACKEND_D3D12_RENDERPASSDESCRIPTORD3D12_H_
+#ifndef DAWNNATIVE_D3D12_RENDERPASSDESCRIPTORD3D12_H_
+#define DAWNNATIVE_D3D12_RENDERPASSDESCRIPTORD3D12_H_
 
 #include "dawn_native/RenderPassDescriptor.h"
 
@@ -49,4 +49,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_RENDERPASSDESCRIPTORD3D12_H_
+#endif  // DAWNNATIVE_D3D12_RENDERPASSDESCRIPTORD3D12_H_
diff --git a/src/dawn_native/d3d12/RenderPipelineD3D12.h b/src/dawn_native/d3d12/RenderPipelineD3D12.h
index ab3574f32c..14cb46e1e9 100644
--- a/src/dawn_native/d3d12/RenderPipelineD3D12.h
+++ b/src/dawn_native/d3d12/RenderPipelineD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_RENDERPIPELINED3D12_H_
-#define BACKEND_D3D12_RENDERPIPELINED3D12_H_
+#ifndef DAWNNATIVE_D3D12_RENDERPIPELINED3D12_H_
+#define DAWNNATIVE_D3D12_RENDERPIPELINED3D12_H_
 
 #include "dawn_native/RenderPipeline.h"
 
@@ -40,4 +40,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_RENDERPIPELINED3D12_H_
+#endif  // DAWNNATIVE_D3D12_RENDERPIPELINED3D12_H_
diff --git a/src/dawn_native/d3d12/ResourceAllocator.h b/src/dawn_native/d3d12/ResourceAllocator.h
index c3283c646f..93f083af0d 100644
--- a/src/dawn_native/d3d12/ResourceAllocator.h
+++ b/src/dawn_native/d3d12/ResourceAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_RESOURCEALLOCATIONMANAGER_H_
-#define BACKEND_D3D12_RESOURCEALLOCATIONMANAGER_H_
+#ifndef DAWNNATIVE_D3D12_RESOURCEALLOCATIONMANAGER_H_
+#define DAWNNATIVE_D3D12_RESOURCEALLOCATIONMANAGER_H_
 
 #include "dawn_native/d3d12/d3d12_platform.h"
 
@@ -41,4 +41,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_RESOURCEALLOCATIONMANAGER_H_
+#endif  // DAWNNATIVE_D3D12_RESOURCEALLOCATIONMANAGER_H_
diff --git a/src/dawn_native/d3d12/ResourceUploader.h b/src/dawn_native/d3d12/ResourceUploader.h
index b3897e3077..0b1a4b662d 100644
--- a/src/dawn_native/d3d12/ResourceUploader.h
+++ b/src/dawn_native/d3d12/ResourceUploader.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_RESOURCEUPLOADER_H_
-#define BACKEND_D3D12_RESOURCEUPLOADER_H_
+#ifndef DAWNNATIVE_D3D12_RESOURCEUPLOADER_H_
+#define DAWNNATIVE_D3D12_RESOURCEUPLOADER_H_
 
 #include "dawn_native/d3d12/d3d12_platform.h"
 
@@ -45,4 +45,4 @@ namespace backend { namespace d3d12 {
     };
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_RESOURCEUPLOADER_H_
+#endif  // DAWNNATIVE_D3D12_RESOURCEUPLOADER_H_
diff --git a/src/dawn_native/d3d12/SamplerD3D12.h b/src/dawn_native/d3d12/SamplerD3D12.h
index 11d070acb9..03d3b4f93b 100644
--- a/src/dawn_native/d3d12/SamplerD3D12.h
+++ b/src/dawn_native/d3d12/SamplerD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_SAMPLERD3D12_H_
-#define BACKEND_D3D12_SAMPLERD3D12_H_
+#ifndef DAWNNATIVE_D3D12_SAMPLERD3D12_H_
+#define DAWNNATIVE_D3D12_SAMPLERD3D12_H_
 
 #include "dawn_native/Sampler.h"
 
@@ -35,4 +35,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_SAMPLERD3D12_H_
+#endif  // DAWNNATIVE_D3D12_SAMPLERD3D12_H_
diff --git a/src/dawn_native/d3d12/ShaderModuleD3D12.h b/src/dawn_native/d3d12/ShaderModuleD3D12.h
index 153e31b37c..4a44170310 100644
--- a/src/dawn_native/d3d12/ShaderModuleD3D12.h
+++ b/src/dawn_native/d3d12/ShaderModuleD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_SHADERMODULED3D12_H_
-#define BACKEND_D3D12_SHADERMODULED3D12_H_
+#ifndef DAWNNATIVE_D3D12_SHADERMODULED3D12_H_
+#define DAWNNATIVE_D3D12_SHADERMODULED3D12_H_
 
 #include "dawn_native/ShaderModule.h"
 
@@ -35,4 +35,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_SHADERMODULED3D12_H_
+#endif  // DAWNNATIVE_D3D12_SHADERMODULED3D12_H_
diff --git a/src/dawn_native/d3d12/SwapChainD3D12.h b/src/dawn_native/d3d12/SwapChainD3D12.h
index 11dfb8b11b..b244d25309 100644
--- a/src/dawn_native/d3d12/SwapChainD3D12.h
+++ b/src/dawn_native/d3d12/SwapChainD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_SWAPCHAIND3D12_H_
-#define BACKEND_D3D12_SWAPCHAIND3D12_H_
+#ifndef DAWNNATIVE_D3D12_SWAPCHAIND3D12_H_
+#define DAWNNATIVE_D3D12_SWAPCHAIND3D12_H_
 
 #include "dawn_native/SwapChain.h"
 
@@ -33,4 +33,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_SWAPCHAIN_D3D12_H_
+#endif  // DAWNNATIVE_D3D12_SWAPCHAIN_D3D12_H_
diff --git a/src/dawn_native/d3d12/TextureCopySplitter.h b/src/dawn_native/d3d12/TextureCopySplitter.h
index 8675aa65df..0ee07f8e7c 100644
--- a/src/dawn_native/d3d12/TextureCopySplitter.h
+++ b/src/dawn_native/d3d12/TextureCopySplitter.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_TEXTURECOPYSPLITTER_H_
-#define BACKEND_D3D12_TEXTURECOPYSPLITTER_H_
+#ifndef DAWNNATIVE_D3D12_TEXTURECOPYSPLITTER_H_
+#define DAWNNATIVE_D3D12_TEXTURECOPYSPLITTER_H_
 
 #include "dawn/dawncpp.h"
 
@@ -61,4 +61,4 @@ namespace backend { namespace d3d12 {
 
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_TEXTURECOPYSPLITTER_H_
+#endif  // DAWNNATIVE_D3D12_TEXTURECOPYSPLITTER_H_
diff --git a/src/dawn_native/d3d12/TextureD3D12.h b/src/dawn_native/d3d12/TextureD3D12.h
index 0a7874510e..8c3046086b 100644
--- a/src/dawn_native/d3d12/TextureD3D12.h
+++ b/src/dawn_native/d3d12/TextureD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_TEXTURED3D12_H_
-#define BACKEND_D3D12_TEXTURED3D12_H_
+#ifndef DAWNNATIVE_D3D12_TEXTURED3D12_H_
+#define DAWNNATIVE_D3D12_TEXTURED3D12_H_
 
 #include "dawn_native/Texture.h"
 
@@ -57,4 +57,4 @@ namespace backend { namespace d3d12 {
     };
 }}  // namespace backend::d3d12
 
-#endif  // BACKEND_D3D12_TEXTURED3D12_H_
+#endif  // DAWNNATIVE_D3D12_TEXTURED3D12_H_
diff --git a/src/dawn_native/d3d12/d3d12_platform.h b/src/dawn_native/d3d12/d3d12_platform.h
index fa76a75351..9864c00672 100644
--- a/src/dawn_native/d3d12/d3d12_platform.h
+++ b/src/dawn_native/d3d12/d3d12_platform.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_D3D12_D3D12PLATFORM_H_
-#define BACKEND_D3D12_D3D12PLATFORM_H_
+#ifndef DAWNNATIVE_D3D12_D3D12PLATFORM_H_
+#define DAWNNATIVE_D3D12_D3D12PLATFORM_H_
 
 #include <d3d12.h>
 #include <dxgi1_4.h>
@@ -31,4 +31,4 @@ using Microsoft::WRL::ComPtr;
 #    include "common/windows_with_undefs.h"
 #endif
 
-#endif  // BACKEND_D3D12_D3D12PLATFORM_H_
+#endif  // DAWNNATIVE_D3D12_D3D12PLATFORM_H_
diff --git a/src/dawn_native/metal/BlendStateMTL.h b/src/dawn_native/metal/BlendStateMTL.h
index 87adf524ca..5d7538db1b 100644
--- a/src/dawn_native/metal/BlendStateMTL.h
+++ b/src/dawn_native/metal/BlendStateMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_BLENDSTATEMTL_H_
-#define BACKEND_METAL_BLENDSTATEMTL_H_
+#ifndef DAWNNATIVE_METAL_BLENDSTATEMTL_H_
+#define DAWNNATIVE_METAL_BLENDSTATEMTL_H_
 
 #include "dawn_native/BlendState.h"
 
@@ -29,4 +29,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_BLENDSTATEMTL_H_
+#endif  // DAWNNATIVE_METAL_BLENDSTATEMTL_H_
diff --git a/src/dawn_native/metal/BufferMTL.h b/src/dawn_native/metal/BufferMTL.h
index b1b1162b1f..d9c0b0a129 100644
--- a/src/dawn_native/metal/BufferMTL.h
+++ b/src/dawn_native/metal/BufferMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_BUFFERMTL_H_
-#define BACKEND_METAL_BUFFERMTL_H_
+#ifndef DAWNNATIVE_METAL_BUFFERMTL_H_
+#define DAWNNATIVE_METAL_BUFFERMTL_H_
 
 #include "common/SerialQueue.h"
 #include "dawn_native/Buffer.h"
@@ -69,4 +69,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_BUFFERMTL_H_
+#endif  // DAWNNATIVE_METAL_BUFFERMTL_H_
diff --git a/src/dawn_native/metal/CommandBufferMTL.h b/src/dawn_native/metal/CommandBufferMTL.h
index 307d8d9978..f897206f1f 100644
--- a/src/dawn_native/metal/CommandBufferMTL.h
+++ b/src/dawn_native/metal/CommandBufferMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_COMMANDBUFFERMTL_H_
-#define BACKEND_METAL_COMMANDBUFFERMTL_H_
+#ifndef DAWNNATIVE_METAL_COMMANDBUFFERMTL_H_
+#define DAWNNATIVE_METAL_COMMANDBUFFERMTL_H_
 
 #include "dawn_native/CommandBuffer.h"
 
@@ -45,4 +45,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_COMMANDBUFFERMTL_H_
+#endif  // DAWNNATIVE_METAL_COMMANDBUFFERMTL_H_
diff --git a/src/dawn_native/metal/ComputePipelineMTL.h b/src/dawn_native/metal/ComputePipelineMTL.h
index 33ac823b43..d088851edc 100644
--- a/src/dawn_native/metal/ComputePipelineMTL.h
+++ b/src/dawn_native/metal/ComputePipelineMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_COMPUTEPIPELINEMTL_H_
-#define BACKEND_METAL_COMPUTEPIPELINEMTL_H_
+#ifndef DAWNNATIVE_METAL_COMPUTEPIPELINEMTL_H_
+#define DAWNNATIVE_METAL_COMPUTEPIPELINEMTL_H_
 
 #include "dawn_native/ComputePipeline.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_COMPUTEPIPELINEMTL_H_
+#endif  // DAWNNATIVE_METAL_COMPUTEPIPELINEMTL_H_
diff --git a/src/dawn_native/metal/DepthStencilStateMTL.h b/src/dawn_native/metal/DepthStencilStateMTL.h
index 30956cf53b..5490e912ca 100644
--- a/src/dawn_native/metal/DepthStencilStateMTL.h
+++ b/src/dawn_native/metal/DepthStencilStateMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_DEPTHSTENCILSTATEMTL_H_
-#define BACKEND_METAL_DEPTHSTENCILSTATEMTL_H_
+#ifndef DAWNNATIVE_METAL_DEPTHSTENCILSTATEMTL_H_
+#define DAWNNATIVE_METAL_DEPTHSTENCILSTATEMTL_H_
 
 #include "dawn_native/DepthStencilState.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_DEPTHSTENCILSTATEMTL_H_
+#endif  // DAWNNATIVE_METAL_DEPTHSTENCILSTATEMTL_H_
diff --git a/src/dawn_native/metal/DeviceMTL.h b/src/dawn_native/metal/DeviceMTL.h
index 780406fcac..974f7d7d27 100644
--- a/src/dawn_native/metal/DeviceMTL.h
+++ b/src/dawn_native/metal/DeviceMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_DEVICEMTL_H_
-#define BACKEND_METAL_DEVICEMTL_H_
+#ifndef DAWNNATIVE_METAL_DEVICEMTL_H_
+#define DAWNNATIVE_METAL_DEVICEMTL_H_
 
 #include "dawn/dawncpp.h"
 
@@ -85,4 +85,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_DEVICEMTL_H_
+#endif  // DAWNNATIVE_METAL_DEVICEMTL_H_
diff --git a/src/dawn_native/metal/Forward.h b/src/dawn_native/metal/Forward.h
index 299a6b1f27..ed26617adf 100644
--- a/src/dawn_native/metal/Forward.h
+++ b/src/dawn_native/metal/Forward.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_FORWARD_H_
-#define BACKEND_METAL_FORWARD_H_
+#ifndef DAWNNATIVE_METAL_FORWARD_H_
+#define DAWNNATIVE_METAL_FORWARD_H_
 
 #include "dawn_native/ToBackend.h"
 
@@ -75,4 +75,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_FORWARD_H_
+#endif  // DAWNNATIVE_METAL_FORWARD_H_
diff --git a/src/dawn_native/metal/InputStateMTL.h b/src/dawn_native/metal/InputStateMTL.h
index 4d3700f28b..ca0852a55f 100644
--- a/src/dawn_native/metal/InputStateMTL.h
+++ b/src/dawn_native/metal/InputStateMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_INPUTSTATEMTL_H_
-#define BACKEND_METAL_INPUTSTATEMTL_H_
+#ifndef DAWNNATIVE_METAL_INPUTSTATEMTL_H_
+#define DAWNNATIVE_METAL_INPUTSTATEMTL_H_
 
 #include "dawn_native/InputState.h"
 
@@ -34,4 +34,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_COMMANDINPUTSTATEMTL_H_
+#endif  // DAWNNATIVE_METAL_COMMANDINPUTSTATEMTL_H_
diff --git a/src/dawn_native/metal/PipelineLayoutMTL.h b/src/dawn_native/metal/PipelineLayoutMTL.h
index 1ce709757b..ecddcd3523 100644
--- a/src/dawn_native/metal/PipelineLayoutMTL.h
+++ b/src/dawn_native/metal/PipelineLayoutMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_PIPELINELAYOUTMTL_H_
-#define BACKEND_METAL_PIPELINELAYOUTMTL_H_
+#ifndef DAWNNATIVE_METAL_PIPELINELAYOUTMTL_H_
+#define DAWNNATIVE_METAL_PIPELINELAYOUTMTL_H_
 
 #include "dawn_native/PipelineLayout.h"
 
@@ -43,4 +43,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_PIPELINELAYOUTMTL_H_
+#endif  // DAWNNATIVE_METAL_PIPELINELAYOUTMTL_H_
diff --git a/src/dawn_native/metal/QueueMTL.h b/src/dawn_native/metal/QueueMTL.h
index c7fc4de9cc..558f2dca22 100644
--- a/src/dawn_native/metal/QueueMTL.h
+++ b/src/dawn_native/metal/QueueMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_QUEUEMTL_H_
-#define BACKEND_METAL_QUEUEMTL_H_
+#ifndef DAWNNATIVE_METAL_QUEUEMTL_H_
+#define DAWNNATIVE_METAL_QUEUEMTL_H_
 
 #include "dawn_native/Queue.h"
 
@@ -32,4 +32,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_QUEUEMTL_H_
+#endif  // DAWNNATIVE_METAL_QUEUEMTL_H_
diff --git a/src/dawn_native/metal/RenderPipelineMTL.h b/src/dawn_native/metal/RenderPipelineMTL.h
index 63354a3d22..a6ca27b0bb 100644
--- a/src/dawn_native/metal/RenderPipelineMTL.h
+++ b/src/dawn_native/metal/RenderPipelineMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_RENDERPIPELINEMTL_H_
-#define BACKEND_METAL_RENDERPIPELINEMTL_H_
+#ifndef DAWNNATIVE_METAL_RENDERPIPELINEMTL_H_
+#define DAWNNATIVE_METAL_RENDERPIPELINEMTL_H_
 
 #include "dawn_native/RenderPipeline.h"
 
@@ -39,4 +39,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_RENDERPIPELINEMTL_H_
+#endif  // DAWNNATIVE_METAL_RENDERPIPELINEMTL_H_
diff --git a/src/dawn_native/metal/ResourceUploader.h b/src/dawn_native/metal/ResourceUploader.h
index 92e328b271..255e89d17d 100644
--- a/src/dawn_native/metal/ResourceUploader.h
+++ b/src/dawn_native/metal/ResourceUploader.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_RESOURCEUPLOADER_H_
-#define BACKEND_METAL_RESOURCEUPLOADER_H_
+#ifndef DAWNNATIVE_METAL_RESOURCEUPLOADER_H_
+#define DAWNNATIVE_METAL_RESOURCEUPLOADER_H_
 
 #include "common/Serial.h"
 #include "common/SerialQueue.h"
@@ -39,4 +39,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_RESOURCEUPLOADER_H_
+#endif  // DAWNNATIVE_METAL_RESOURCEUPLOADER_H_
diff --git a/src/dawn_native/metal/SamplerMTL.h b/src/dawn_native/metal/SamplerMTL.h
index d0ec2180a2..03283ebfdf 100644
--- a/src/dawn_native/metal/SamplerMTL.h
+++ b/src/dawn_native/metal/SamplerMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_SAMPLERMTL_H_
-#define BACKEND_METAL_SAMPLERMTL_H_
+#ifndef DAWNNATIVE_METAL_SAMPLERMTL_H_
+#define DAWNNATIVE_METAL_SAMPLERMTL_H_
 
 #include "dawn_native/Sampler.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_SAMPLERMTL_H_
+#endif  // DAWNNATIVE_METAL_SAMPLERMTL_H_
diff --git a/src/dawn_native/metal/ShaderModuleMTL.h b/src/dawn_native/metal/ShaderModuleMTL.h
index 9ce04b29db..cc668e47a7 100644
--- a/src/dawn_native/metal/ShaderModuleMTL.h
+++ b/src/dawn_native/metal/ShaderModuleMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_SHADERMODULEMTL_H_
-#define BACKEND_METAL_SHADERMODULEMTL_H_
+#ifndef DAWNNATIVE_METAL_SHADERMODULEMTL_H_
+#define DAWNNATIVE_METAL_SHADERMODULEMTL_H_
 
 #include "dawn_native/ShaderModule.h"
 
@@ -49,4 +49,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_SHADERMODULEMTL_H_
+#endif  // DAWNNATIVE_METAL_SHADERMODULEMTL_H_
diff --git a/src/dawn_native/metal/SwapChainMTL.h b/src/dawn_native/metal/SwapChainMTL.h
index cd2b8c4e07..41746bf5d3 100644
--- a/src/dawn_native/metal/SwapChainMTL.h
+++ b/src/dawn_native/metal/SwapChainMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_SWAPCHAINMTL_H_
-#define BACKEND_METAL_SWAPCHAINMTL_H_
+#ifndef DAWNNATIVE_METAL_SWAPCHAINMTL_H_
+#define DAWNNATIVE_METAL_SWAPCHAINMTL_H_
 
 #include "dawn_native/SwapChain.h"
 
@@ -33,4 +33,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_SWAPCHAINMTL_H_
+#endif  // DAWNNATIVE_METAL_SWAPCHAINMTL_H_
diff --git a/src/dawn_native/metal/TextureMTL.h b/src/dawn_native/metal/TextureMTL.h
index 3e2dc27bd4..696fd4854f 100644
--- a/src/dawn_native/metal/TextureMTL.h
+++ b/src/dawn_native/metal/TextureMTL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_METAL_TEXTUREMTL_H_
-#define BACKEND_METAL_TEXTUREMTL_H_
+#ifndef DAWNNATIVE_METAL_TEXTUREMTL_H_
+#define DAWNNATIVE_METAL_TEXTUREMTL_H_
 
 #include "dawn_native/Texture.h"
 
@@ -42,4 +42,4 @@ namespace backend { namespace metal {
 
 }}  // namespace backend::metal
 
-#endif  // BACKEND_METAL_TEXTUREMTL_H_
+#endif  // DAWNNATIVE_METAL_TEXTUREMTL_H_
diff --git a/src/dawn_native/null/NullBackend.h b/src/dawn_native/null/NullBackend.h
index 796c4eab4c..97568f33ce 100644
--- a/src/dawn_native/null/NullBackend.h
+++ b/src/dawn_native/null/NullBackend.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_NULL_NULLBACKEND_H_
-#define BACKEND_NULL_NULLBACKEND_H_
+#ifndef DAWNNATIVE_NULL_NULLBACKEND_H_
+#define DAWNNATIVE_NULL_NULLBACKEND_H_
 
 #include "dawn/dawncpp.h"
 
@@ -176,4 +176,4 @@ namespace backend { namespace null {
 
 }}  // namespace backend::null
 
-#endif  // BACKEND_NULL_NULLBACKEND_H_
+#endif  // DAWNNATIVE_NULL_NULLBACKEND_H_
diff --git a/src/dawn_native/opengl/BlendStateGL.h b/src/dawn_native/opengl/BlendStateGL.h
index 355db713ed..7c7907ad7e 100644
--- a/src/dawn_native/opengl/BlendStateGL.h
+++ b/src/dawn_native/opengl/BlendStateGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_BLENDSTATEGL_H_
-#define BACKEND_OPENGL_BLENDSTATEGL_H_
+#ifndef DAWNNATIVE_OPENGL_BLENDSTATEGL_H_
+#define DAWNNATIVE_OPENGL_BLENDSTATEGL_H_
 
 #include "dawn_native/BlendState.h"
 
@@ -30,4 +30,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_BLENDSTATEGL_H_
+#endif  // DAWNNATIVE_OPENGL_BLENDSTATEGL_H_
diff --git a/src/dawn_native/opengl/BufferGL.h b/src/dawn_native/opengl/BufferGL.h
index 92ebd411bd..d5d2f7ccad 100644
--- a/src/dawn_native/opengl/BufferGL.h
+++ b/src/dawn_native/opengl/BufferGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_BUFFERGL_H_
-#define BACKEND_OPENGL_BUFFERGL_H_
+#ifndef DAWNNATIVE_OPENGL_BUFFERGL_H_
+#define DAWNNATIVE_OPENGL_BUFFERGL_H_
 
 #include "dawn_native/Buffer.h"
 
@@ -45,4 +45,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_BUFFERGL_H_
+#endif  // DAWNNATIVE_OPENGL_BUFFERGL_H_
diff --git a/src/dawn_native/opengl/CommandBufferGL.h b/src/dawn_native/opengl/CommandBufferGL.h
index 342c506944..99a91f84b5 100644
--- a/src/dawn_native/opengl/CommandBufferGL.h
+++ b/src/dawn_native/opengl/CommandBufferGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_COMMANDBUFFERGL_H_
-#define BACKEND_OPENGL_COMMANDBUFFERGL_H_
+#ifndef DAWNNATIVE_OPENGL_COMMANDBUFFERGL_H_
+#define DAWNNATIVE_OPENGL_COMMANDBUFFERGL_H_
 
 #include "dawn_native/CommandAllocator.h"
 #include "dawn_native/CommandBuffer.h"
@@ -42,4 +42,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_COMMANDBUFFERGL_H_
+#endif  // DAWNNATIVE_OPENGL_COMMANDBUFFERGL_H_
diff --git a/src/dawn_native/opengl/ComputePipelineGL.h b/src/dawn_native/opengl/ComputePipelineGL.h
index a5c43269b0..dd505d2eff 100644
--- a/src/dawn_native/opengl/ComputePipelineGL.h
+++ b/src/dawn_native/opengl/ComputePipelineGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_COMPUTEPIPELINEGL_H_
-#define BACKEND_OPENGL_COMPUTEPIPELINEGL_H_
+#ifndef DAWNNATIVE_OPENGL_COMPUTEPIPELINEGL_H_
+#define DAWNNATIVE_OPENGL_COMPUTEPIPELINEGL_H_
 
 #include "dawn_native/ComputePipeline.h"
 
@@ -32,4 +32,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_COMPUTEPIPELINEGL_H_
+#endif  // DAWNNATIVE_OPENGL_COMPUTEPIPELINEGL_H_
diff --git a/src/dawn_native/opengl/DepthStencilStateGL.h b/src/dawn_native/opengl/DepthStencilStateGL.h
index 889ce0eabd..0be291487e 100644
--- a/src/dawn_native/opengl/DepthStencilStateGL.h
+++ b/src/dawn_native/opengl/DepthStencilStateGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_DEPTHSTENCILSTATEGL_H_
-#define BACKEND_OPENGL_DEPTHSTENCILSTATEGL_H_
+#ifndef DAWNNATIVE_OPENGL_DEPTHSTENCILSTATEGL_H_
+#define DAWNNATIVE_OPENGL_DEPTHSTENCILSTATEGL_H_
 
 #include "dawn_native/DepthStencilState.h"
 
@@ -31,4 +31,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_DEPTHSTENCILSTATEGL_H_
+#endif  // DAWNNATIVE_OPENGL_DEPTHSTENCILSTATEGL_H_
diff --git a/src/dawn_native/opengl/DeviceGL.h b/src/dawn_native/opengl/DeviceGL.h
index 6aac3b8c66..eb7aff091e 100644
--- a/src/dawn_native/opengl/DeviceGL.h
+++ b/src/dawn_native/opengl/DeviceGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_DEVICEGL_H_
-#define BACKEND_OPENGL_DEVICEGL_H_
+#ifndef DAWNNATIVE_OPENGL_DEVICEGL_H_
+#define DAWNNATIVE_OPENGL_DEVICEGL_H_
 
 #include "dawn/dawncpp.h"
 
@@ -62,4 +62,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_DEVICEGL_H_
+#endif  // DAWNNATIVE_OPENGL_DEVICEGL_H_
diff --git a/src/dawn_native/opengl/Forward.h b/src/dawn_native/opengl/Forward.h
index 259558f69f..d4567224ba 100644
--- a/src/dawn_native/opengl/Forward.h
+++ b/src/dawn_native/opengl/Forward.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_FORWARD_H_
-#define BACKEND_OPENGL_FORWARD_H_
+#ifndef DAWNNATIVE_OPENGL_FORWARD_H_
+#define DAWNNATIVE_OPENGL_FORWARD_H_
 
 #include "dawn_native/ToBackend.h"
 
@@ -75,4 +75,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_FORWARD_H_
+#endif  // DAWNNATIVE_OPENGL_FORWARD_H_
diff --git a/src/dawn_native/opengl/InputStateGL.h b/src/dawn_native/opengl/InputStateGL.h
index 92161d5ecf..e15717a3b8 100644
--- a/src/dawn_native/opengl/InputStateGL.h
+++ b/src/dawn_native/opengl/InputStateGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_INPUTSTATEGL_H_
-#define BACKEND_OPENGL_INPUTSTATEGL_H_
+#ifndef DAWNNATIVE_OPENGL_INPUTSTATEGL_H_
+#define DAWNNATIVE_OPENGL_INPUTSTATEGL_H_
 
 #include "dawn_native/InputState.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_INPUTSTATEGL_H_
+#endif  // DAWNNATIVE_OPENGL_INPUTSTATEGL_H_
diff --git a/src/dawn_native/opengl/PersistentPipelineStateGL.h b/src/dawn_native/opengl/PersistentPipelineStateGL.h
index 06838d1b00..87698e0385 100644
--- a/src/dawn_native/opengl/PersistentPipelineStateGL.h
+++ b/src/dawn_native/opengl/PersistentPipelineStateGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_PERSISTENTPIPELINESTATEGL_H_
-#define BACKEND_OPENGL_PERSISTENTPIPELINESTATEGL_H_
+#ifndef DAWNNATIVE_OPENGL_PERSISTENTPIPELINESTATEGL_H_
+#define DAWNNATIVE_OPENGL_PERSISTENTPIPELINESTATEGL_H_
 
 #include "dawn/dawncpp.h"
 
@@ -40,4 +40,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_PERSISTENTPIPELINESTATEGL_H_
+#endif  // DAWNNATIVE_OPENGL_PERSISTENTPIPELINESTATEGL_H_
diff --git a/src/dawn_native/opengl/PipelineGL.h b/src/dawn_native/opengl/PipelineGL.h
index 74fd9ef600..14dc7d2bba 100644
--- a/src/dawn_native/opengl/PipelineGL.h
+++ b/src/dawn_native/opengl/PipelineGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_PIPELINEGL_H_
-#define BACKEND_OPENGL_PIPELINEGL_H_
+#ifndef DAWNNATIVE_OPENGL_PIPELINEGL_H_
+#define DAWNNATIVE_OPENGL_PIPELINEGL_H_
 
 #include "dawn_native/Pipeline.h"
 
@@ -51,4 +51,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_PIPELINEGL_H_
+#endif  // DAWNNATIVE_OPENGL_PIPELINEGL_H_
diff --git a/src/dawn_native/opengl/PipelineLayoutGL.h b/src/dawn_native/opengl/PipelineLayoutGL.h
index c3d64fd33c..b1b730bd43 100644
--- a/src/dawn_native/opengl/PipelineLayoutGL.h
+++ b/src/dawn_native/opengl/PipelineLayoutGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_PIPELINELAYOUTGL_H_
-#define BACKEND_OPENGL_PIPELINELAYOUTGL_H_
+#ifndef DAWNNATIVE_OPENGL_PIPELINELAYOUTGL_H_
+#define DAWNNATIVE_OPENGL_PIPELINELAYOUTGL_H_
 
 #include "dawn_native/PipelineLayout.h"
 
@@ -43,4 +43,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_PIPELINELAYOUTGL_H_
+#endif  // DAWNNATIVE_OPENGL_PIPELINELAYOUTGL_H_
diff --git a/src/dawn_native/opengl/QueueGL.h b/src/dawn_native/opengl/QueueGL.h
index 007bed2bf0..35dbd9a051 100644
--- a/src/dawn_native/opengl/QueueGL.h
+++ b/src/dawn_native/opengl/QueueGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_QUEUEGL_H_
-#define BACKEND_OPENGL_QUEUEGL_H_
+#ifndef DAWNNATIVE_OPENGL_QUEUEGL_H_
+#define DAWNNATIVE_OPENGL_QUEUEGL_H_
 
 #include "dawn_native/Queue.h"
 
@@ -32,4 +32,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_QUEUEGL_H_
+#endif  // DAWNNATIVE_OPENGL_QUEUEGL_H_
diff --git a/src/dawn_native/opengl/RenderPipelineGL.h b/src/dawn_native/opengl/RenderPipelineGL.h
index 93b39f9fd7..9fdff35540 100644
--- a/src/dawn_native/opengl/RenderPipelineGL.h
+++ b/src/dawn_native/opengl/RenderPipelineGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_RENDERPIPELINEGL_H_
-#define BACKEND_OPENGL_RENDERPIPELINEGL_H_
+#ifndef DAWNNATIVE_OPENGL_RENDERPIPELINEGL_H_
+#define DAWNNATIVE_OPENGL_RENDERPIPELINEGL_H_
 
 #include "dawn_native/RenderPipeline.h"
 
@@ -41,4 +41,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_RENDERPIPELINEGL_H_
+#endif  // DAWNNATIVE_OPENGL_RENDERPIPELINEGL_H_
diff --git a/src/dawn_native/opengl/SamplerGL.h b/src/dawn_native/opengl/SamplerGL.h
index a879871b9c..ccad9c2ad2 100644
--- a/src/dawn_native/opengl/SamplerGL.h
+++ b/src/dawn_native/opengl/SamplerGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_SAMPLERGL_H_
-#define BACKEND_OPENGL_SAMPLERGL_H_
+#ifndef DAWNNATIVE_OPENGL_SAMPLERGL_H_
+#define DAWNNATIVE_OPENGL_SAMPLERGL_H_
 
 #include "dawn_native/Sampler.h"
 
@@ -35,4 +35,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_SAMPLERGL_H_
+#endif  // DAWNNATIVE_OPENGL_SAMPLERGL_H_
diff --git a/src/dawn_native/opengl/ShaderModuleGL.h b/src/dawn_native/opengl/ShaderModuleGL.h
index 53f7e00e57..c2c8a1925b 100644
--- a/src/dawn_native/opengl/ShaderModuleGL.h
+++ b/src/dawn_native/opengl/ShaderModuleGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_SHADERMODULEGL_H_
-#define BACKEND_OPENGL_SHADERMODULEGL_H_
+#ifndef DAWNNATIVE_OPENGL_SHADERMODULEGL_H_
+#define DAWNNATIVE_OPENGL_SHADERMODULEGL_H_
 
 #include "dawn_native/ShaderModule.h"
 
@@ -54,4 +54,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_SHADERMODULEGL_H_
+#endif  // DAWNNATIVE_OPENGL_SHADERMODULEGL_H_
diff --git a/src/dawn_native/opengl/SwapChainGL.h b/src/dawn_native/opengl/SwapChainGL.h
index fa0267b4be..8ae6066918 100644
--- a/src/dawn_native/opengl/SwapChainGL.h
+++ b/src/dawn_native/opengl/SwapChainGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_SWAPCHAINGL_H_
-#define BACKEND_OPENGL_SWAPCHAINGL_H_
+#ifndef DAWNNATIVE_OPENGL_SWAPCHAINGL_H_
+#define DAWNNATIVE_OPENGL_SWAPCHAINGL_H_
 
 #include "dawn_native/SwapChain.h"
 
@@ -35,4 +35,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_SWAPCHAINGL_H_
+#endif  // DAWNNATIVE_OPENGL_SWAPCHAINGL_H_
diff --git a/src/dawn_native/opengl/TextureGL.h b/src/dawn_native/opengl/TextureGL.h
index 334dfbe412..0964a2ab3a 100644
--- a/src/dawn_native/opengl/TextureGL.h
+++ b/src/dawn_native/opengl/TextureGL.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_OPENGL_TEXTUREGL_H_
-#define BACKEND_OPENGL_TEXTUREGL_H_
+#ifndef DAWNNATIVE_OPENGL_TEXTUREGL_H_
+#define DAWNNATIVE_OPENGL_TEXTUREGL_H_
 
 #include "dawn_native/Texture.h"
 
@@ -49,4 +49,4 @@ namespace backend { namespace opengl {
 
 }}  // namespace backend::opengl
 
-#endif  // BACKEND_OPENGL_TEXTUREGL_H_
+#endif  // DAWNNATIVE_OPENGL_TEXTUREGL_H_
diff --git a/src/dawn_native/vulkan/BindGroupLayoutVk.h b/src/dawn_native/vulkan/BindGroupLayoutVk.h
index b011bbbbeb..82e7393ca4 100644
--- a/src/dawn_native/vulkan/BindGroupLayoutVk.h
+++ b/src/dawn_native/vulkan/BindGroupLayoutVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_BINDGROUPLAYOUTVK_H_
-#define BACKEND_VULKAN_BINDGROUPLAYOUTVK_H_
+#ifndef DAWNNATIVE_VULKAN_BINDGROUPLAYOUTVK_H_
+#define DAWNNATIVE_VULKAN_BINDGROUPLAYOUTVK_H_
 
 #include "dawn_native/BindGroupLayout.h"
 
@@ -42,4 +42,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_BINDGROUPLAYOUTVK_H_
+#endif  // DAWNNATIVE_VULKAN_BINDGROUPLAYOUTVK_H_
diff --git a/src/dawn_native/vulkan/BindGroupVk.h b/src/dawn_native/vulkan/BindGroupVk.h
index 06da0cde98..5d05dfb79c 100644
--- a/src/dawn_native/vulkan/BindGroupVk.h
+++ b/src/dawn_native/vulkan/BindGroupVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_BINDGROUPVK_H_
-#define BACKEND_VULKAN_BINDGROUPVK_H_
+#ifndef DAWNNATIVE_VULKAN_BINDGROUPVK_H_
+#define DAWNNATIVE_VULKAN_BINDGROUPVK_H_
 
 #include "dawn_native/BindGroup.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_BINDGROUPVK_H_
+#endif  // DAWNNATIVE_VULKAN_BINDGROUPVK_H_
diff --git a/src/dawn_native/vulkan/BlendStateVk.h b/src/dawn_native/vulkan/BlendStateVk.h
index c18071bea5..348bea6df3 100644
--- a/src/dawn_native/vulkan/BlendStateVk.h
+++ b/src/dawn_native/vulkan/BlendStateVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_BLENDSTATEVK_H_
-#define BACKEND_VULKAN_BLENDSTATEVK_H_
+#ifndef DAWNNATIVE_VULKAN_BLENDSTATEVK_H_
+#define DAWNNATIVE_VULKAN_BLENDSTATEVK_H_
 
 #include "dawn_native/BlendState.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_BLENDSTATEVK_H_
+#endif  // DAWNNATIVE_VULKAN_BLENDSTATEVK_H_
diff --git a/src/dawn_native/vulkan/BufferUploader.h b/src/dawn_native/vulkan/BufferUploader.h
index eab31258cf..0ab85f85e5 100644
--- a/src/dawn_native/vulkan/BufferUploader.h
+++ b/src/dawn_native/vulkan/BufferUploader.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_BUFFERUPLOADER_H_
-#define BACKEND_VULKAN_BUFFERUPLOADER_H_
+#ifndef DAWNNATIVE_VULKAN_BUFFERUPLOADER_H_
+#define DAWNNATIVE_VULKAN_BUFFERUPLOADER_H_
 
 #include "common/SerialQueue.h"
 #include "common/vulkan_platform.h"
@@ -40,4 +40,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_BUFFERUPLOADER_H_
+#endif  // DAWNNATIVE_VULKAN_BUFFERUPLOADER_H_
diff --git a/src/dawn_native/vulkan/BufferVk.h b/src/dawn_native/vulkan/BufferVk.h
index c850818ee9..a6042f3749 100644
--- a/src/dawn_native/vulkan/BufferVk.h
+++ b/src/dawn_native/vulkan/BufferVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_BUFFERVK_H_
-#define BACKEND_VULKAN_BUFFERVK_H_
+#ifndef DAWNNATIVE_VULKAN_BUFFERVK_H_
+#define DAWNNATIVE_VULKAN_BUFFERVK_H_
 
 #include "dawn_native/Buffer.h"
 
@@ -76,4 +76,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_BUFFERVK_H_
+#endif  // DAWNNATIVE_VULKAN_BUFFERVK_H_
diff --git a/src/dawn_native/vulkan/CommandBufferVk.h b/src/dawn_native/vulkan/CommandBufferVk.h
index 3bca08f6b9..26bf3d4ee2 100644
--- a/src/dawn_native/vulkan/CommandBufferVk.h
+++ b/src/dawn_native/vulkan/CommandBufferVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_COMMANDBUFFERVK_H_
-#define BACKEND_VULKAN_COMMANDBUFFERVK_H_
+#ifndef DAWNNATIVE_VULKAN_COMMANDBUFFERVK_H_
+#define DAWNNATIVE_VULKAN_COMMANDBUFFERVK_H_
 
 #include "dawn_native/CommandBuffer.h"
 
@@ -40,4 +40,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_COMMANDBUFFERVK_H_
+#endif  // DAWNNATIVE_VULKAN_COMMANDBUFFERVK_H_
diff --git a/src/dawn_native/vulkan/ComputePipelineVk.h b/src/dawn_native/vulkan/ComputePipelineVk.h
index 316de70ce8..bd4b5ec082 100644
--- a/src/dawn_native/vulkan/ComputePipelineVk.h
+++ b/src/dawn_native/vulkan/ComputePipelineVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_COMPUTEPIPELINEVK_H_
-#define BACKEND_VULKAN_COMPUTEPIPELINEVK_H_
+#ifndef DAWNNATIVE_VULKAN_COMPUTEPIPELINEVK_H_
+#define DAWNNATIVE_VULKAN_COMPUTEPIPELINEVK_H_
 
 #include "dawn_native/ComputePipeline.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_COMPUTEPIPELINEVK_H_
+#endif  // DAWNNATIVE_VULKAN_COMPUTEPIPELINEVK_H_
diff --git a/src/dawn_native/vulkan/DepthStencilStateVk.h b/src/dawn_native/vulkan/DepthStencilStateVk.h
index 4204cacca4..fc3333098f 100644
--- a/src/dawn_native/vulkan/DepthStencilStateVk.h
+++ b/src/dawn_native/vulkan/DepthStencilStateVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_DEPTHSTENCILSTATEVK_H_
-#define BACKEND_VULKAN_DEPTHSTENCILSTATEVK_H_
+#ifndef DAWNNATIVE_VULKAN_DEPTHSTENCILSTATEVK_H_
+#define DAWNNATIVE_VULKAN_DEPTHSTENCILSTATEVK_H_
 
 #include "dawn_native/DepthStencilState.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_DEPTHSTENCILSTATEVK_H_
+#endif  // DAWNNATIVE_VULKAN_DEPTHSTENCILSTATEVK_H_
diff --git a/src/dawn_native/vulkan/DeviceVk.h b/src/dawn_native/vulkan/DeviceVk.h
index 1dd7362068..11178ac4ba 100644
--- a/src/dawn_native/vulkan/DeviceVk.h
+++ b/src/dawn_native/vulkan/DeviceVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_DEVICEVK_H_
-#define BACKEND_VULKAN_DEVICEVK_H_
+#ifndef DAWNNATIVE_VULKAN_DEVICEVK_H_
+#define DAWNNATIVE_VULKAN_DEVICEVK_H_
 
 #include "dawn/dawncpp.h"
 
@@ -157,4 +157,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_DEVICEVK_H_
+#endif  // DAWNNATIVE_VULKAN_DEVICEVK_H_
diff --git a/src/dawn_native/vulkan/FencedDeleter.h b/src/dawn_native/vulkan/FencedDeleter.h
index 1c964afce3..a8e0a96cd0 100644
--- a/src/dawn_native/vulkan/FencedDeleter.h
+++ b/src/dawn_native/vulkan/FencedDeleter.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_FENCEDDELETER_H_
-#define BACKEND_VULKAN_FENCEDDELETER_H_
+#ifndef DAWNNATIVE_VULKAN_FENCEDDELETER_H_
+#define DAWNNATIVE_VULKAN_FENCEDDELETER_H_
 
 #include "common/SerialQueue.h"
 #include "common/vulkan_platform.h"
@@ -64,4 +64,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_FENCEDDELETER_H_
+#endif  // DAWNNATIVE_VULKAN_FENCEDDELETER_H_
diff --git a/src/dawn_native/vulkan/Forward.h b/src/dawn_native/vulkan/Forward.h
index 4a181bae94..fa29a18fd5 100644
--- a/src/dawn_native/vulkan/Forward.h
+++ b/src/dawn_native/vulkan/Forward.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_FORWARD_H_
-#define BACKEND_VULKAN_FORWARD_H_
+#ifndef DAWNNATIVE_VULKAN_FORWARD_H_
+#define DAWNNATIVE_VULKAN_FORWARD_H_
 
 #include "dawn_native/ToBackend.h"
 
@@ -72,4 +72,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_FORWARD_H_
+#endif  // DAWNNATIVE_VULKAN_FORWARD_H_
diff --git a/src/dawn_native/vulkan/InputStateVk.h b/src/dawn_native/vulkan/InputStateVk.h
index b35dd3e4a6..7204f8b0c7 100644
--- a/src/dawn_native/vulkan/InputStateVk.h
+++ b/src/dawn_native/vulkan/InputStateVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_INPUTSTATEVK_H_
-#define BACKEND_VULKAN_INPUTSTATEVK_H_
+#ifndef DAWNNATIVE_VULKAN_INPUTSTATEVK_H_
+#define DAWNNATIVE_VULKAN_INPUTSTATEVK_H_
 
 #include "dawn_native/InputState.h"
 
@@ -38,4 +38,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_INPUTSTATEVK_H_
+#endif  // DAWNNATIVE_VULKAN_INPUTSTATEVK_H_
diff --git a/src/dawn_native/vulkan/MemoryAllocator.h b/src/dawn_native/vulkan/MemoryAllocator.h
index 4c2b8c7a91..d7042dada6 100644
--- a/src/dawn_native/vulkan/MemoryAllocator.h
+++ b/src/dawn_native/vulkan/MemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_MEMORYALLOCATOR_H_
-#define BACKEND_VULKAN_MEMORYALLOCATOR_H_
+#ifndef DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_
+#define DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_
 
 #include "common/SerialQueue.h"
 #include "common/vulkan_platform.h"
@@ -55,4 +55,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_MEMORYALLOCATOR_H_
+#endif  // DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_
diff --git a/src/dawn_native/vulkan/NativeSwapChainImplVk.h b/src/dawn_native/vulkan/NativeSwapChainImplVk.h
index 58abddae10..85fb4be1f7 100644
--- a/src/dawn_native/vulkan/NativeSwapChainImplVk.h
+++ b/src/dawn_native/vulkan/NativeSwapChainImplVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_NATIVESWAPCHAINIMPLVK_H_
-#define BACKEND_VULKAN_NATIVESWAPCHAINIMPLVK_H_
+#ifndef DAWNNATIVE_VULKAN_NATIVESWAPCHAINIMPLVK_H_
+#define DAWNNATIVE_VULKAN_NATIVESWAPCHAINIMPLVK_H_
 
 #include "dawn_native/vulkan/VulkanInfo.h"
 
@@ -66,4 +66,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_NATIVESWAPCHAINIMPLVK_H_
+#endif  // DAWNNATIVE_VULKAN_NATIVESWAPCHAINIMPLVK_H_
diff --git a/src/dawn_native/vulkan/PipelineLayoutVk.h b/src/dawn_native/vulkan/PipelineLayoutVk.h
index 7b1d8751ec..fad98716dc 100644
--- a/src/dawn_native/vulkan/PipelineLayoutVk.h
+++ b/src/dawn_native/vulkan/PipelineLayoutVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_PIPELINELAYOUTVK_H_
-#define BACKEND_VULKAN_PIPELINELAYOUTVK_H_
+#ifndef DAWNNATIVE_VULKAN_PIPELINELAYOUTVK_H_
+#define DAWNNATIVE_VULKAN_PIPELINELAYOUTVK_H_
 
 #include "dawn_native/PipelineLayout.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_PIPELINELAYOUTVK_H_
+#endif  // DAWNNATIVE_VULKAN_PIPELINELAYOUTVK_H_
diff --git a/src/dawn_native/vulkan/QueueVk.h b/src/dawn_native/vulkan/QueueVk.h
index 7559229355..713ca30fd7 100644
--- a/src/dawn_native/vulkan/QueueVk.h
+++ b/src/dawn_native/vulkan/QueueVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_QUEUEVK_H_
-#define BACKEND_VULKAN_QUEUEVK_H_
+#ifndef DAWNNATIVE_VULKAN_QUEUEVK_H_
+#define DAWNNATIVE_VULKAN_QUEUEVK_H_
 
 #include "dawn_native/Queue.h"
 
@@ -33,4 +33,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_QUEUEVK_H_
+#endif  // DAWNNATIVE_VULKAN_QUEUEVK_H_
diff --git a/src/dawn_native/vulkan/RenderPassCache.h b/src/dawn_native/vulkan/RenderPassCache.h
index 2107446972..4ecd1aba8e 100644
--- a/src/dawn_native/vulkan/RenderPassCache.h
+++ b/src/dawn_native/vulkan/RenderPassCache.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_RENDERPASSCACHE_H_
-#define BACKEND_VULKAN_RENDERPASSCACHE_H_
+#ifndef DAWNNATIVE_VULKAN_RENDERPASSCACHE_H_
+#define DAWNNATIVE_VULKAN_RENDERPASSCACHE_H_
 
 #include "common/vulkan_platform.h"
 
@@ -78,4 +78,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_RENDERPASSCACHE_H_
+#endif  // DAWNNATIVE_VULKAN_RENDERPASSCACHE_H_
diff --git a/src/dawn_native/vulkan/RenderPassDescriptorVk.h b/src/dawn_native/vulkan/RenderPassDescriptorVk.h
index 9e18bf4704..5add4fb20e 100644
--- a/src/dawn_native/vulkan/RenderPassDescriptorVk.h
+++ b/src/dawn_native/vulkan/RenderPassDescriptorVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_RENDERPASSDESCRIPTORVK_H_
-#define BACKEND_VULKAN_RENDERPASSDESCRIPTORVK_H_
+#ifndef DAWNNATIVE_VULKAN_RENDERPASSDESCRIPTORVK_H_
+#define DAWNNATIVE_VULKAN_RENDERPASSDESCRIPTORVK_H_
 
 #include "dawn_native/RenderPassDescriptor.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_RENDERPASSDESCRIPTORVK_H_
+#endif  // DAWNNATIVE_VULKAN_RENDERPASSDESCRIPTORVK_H_
diff --git a/src/dawn_native/vulkan/RenderPipelineVk.h b/src/dawn_native/vulkan/RenderPipelineVk.h
index fa6eaf332c..2587131d18 100644
--- a/src/dawn_native/vulkan/RenderPipelineVk.h
+++ b/src/dawn_native/vulkan/RenderPipelineVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_RENDERPIPELINEVK_H_
-#define BACKEND_VULKAN_RENDERPIPELINEVK_H_
+#ifndef DAWNNATIVE_VULKAN_RENDERPIPELINEVK_H_
+#define DAWNNATIVE_VULKAN_RENDERPIPELINEVK_H_
 
 #include "dawn_native/RenderPipeline.h"
 
@@ -37,4 +37,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_RENDERPIPELINEVK_H_
+#endif  // DAWNNATIVE_VULKAN_RENDERPIPELINEVK_H_
diff --git a/src/dawn_native/vulkan/SamplerVk.h b/src/dawn_native/vulkan/SamplerVk.h
index 52e61530bb..872fdc6403 100644
--- a/src/dawn_native/vulkan/SamplerVk.h
+++ b/src/dawn_native/vulkan/SamplerVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_SAMPLERVK_H_
-#define BACKEND_VULKAN_SAMPLERVK_H_
+#ifndef DAWNNATIVE_VULKAN_SAMPLERVK_H_
+#define DAWNNATIVE_VULKAN_SAMPLERVK_H_
 
 #include "dawn_native/Sampler.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_SAMPLERVK_H_
+#endif  // DAWNNATIVE_VULKAN_SAMPLERVK_H_
diff --git a/src/dawn_native/vulkan/ShaderModuleVk.h b/src/dawn_native/vulkan/ShaderModuleVk.h
index d14e24590b..55d04f9af9 100644
--- a/src/dawn_native/vulkan/ShaderModuleVk.h
+++ b/src/dawn_native/vulkan/ShaderModuleVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_SHADERMODULEVK_H_
-#define BACKEND_VULKAN_SHADERMODULEVK_H_
+#ifndef DAWNNATIVE_VULKAN_SHADERMODULEVK_H_
+#define DAWNNATIVE_VULKAN_SHADERMODULEVK_H_
 
 #include "dawn_native/ShaderModule.h"
 
@@ -34,4 +34,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_SHADERMODULEVK_H_
+#endif  // DAWNNATIVE_VULKAN_SHADERMODULEVK_H_
diff --git a/src/dawn_native/vulkan/SwapChainVk.h b/src/dawn_native/vulkan/SwapChainVk.h
index c2b6ad1515..3d200a4af1 100644
--- a/src/dawn_native/vulkan/SwapChainVk.h
+++ b/src/dawn_native/vulkan/SwapChainVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_SWAPCHAINVK_H_
-#define BACKEND_VULKAN_SWAPCHAINVK_H_
+#ifndef DAWNNATIVE_VULKAN_SWAPCHAINVK_H_
+#define DAWNNATIVE_VULKAN_SWAPCHAINVK_H_
 
 #include "dawn_native/SwapChain.h"
 
@@ -36,4 +36,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_SWAPCHAINVK_H_
+#endif  // DAWNNATIVE_VULKAN_SWAPCHAINVK_H_
diff --git a/src/dawn_native/vulkan/TextureVk.h b/src/dawn_native/vulkan/TextureVk.h
index 76074f02ca..1069e4f9f4 100644
--- a/src/dawn_native/vulkan/TextureVk.h
+++ b/src/dawn_native/vulkan/TextureVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_TEXTUREVK_H_
-#define BACKEND_VULKAN_TEXTUREVK_H_
+#ifndef DAWNNATIVE_VULKAN_TEXTUREVK_H_
+#define DAWNNATIVE_VULKAN_TEXTUREVK_H_
 
 #include "dawn_native/Texture.h"
 
@@ -61,4 +61,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_TEXTUREVK_H_
+#endif  // DAWNNATIVE_VULKAN_TEXTUREVK_H_
diff --git a/src/dawn_native/vulkan/VulkanFunctions.h b/src/dawn_native/vulkan/VulkanFunctions.h
index 8881c1bdcb..6fa1e458e6 100644
--- a/src/dawn_native/vulkan/VulkanFunctions.h
+++ b/src/dawn_native/vulkan/VulkanFunctions.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_VULKANFUNCTIONS_H_
-#define BACKEND_VULKAN_VULKANFUNCTIONS_H_
+#ifndef DAWNNATIVE_VULKAN_VULKANFUNCTIONS_H_
+#define DAWNNATIVE_VULKAN_VULKANFUNCTIONS_H_
 
 #include "common/vulkan_platform.h"
 
@@ -212,4 +212,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_VULKANFUNCTIONS_H_
+#endif  // DAWNNATIVE_VULKAN_VULKANFUNCTIONS_H_
diff --git a/src/dawn_native/vulkan/VulkanInfo.h b/src/dawn_native/vulkan/VulkanInfo.h
index 9c086023ed..bc62fa6ef5 100644
--- a/src/dawn_native/vulkan/VulkanInfo.h
+++ b/src/dawn_native/vulkan/VulkanInfo.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_VULKANINFO_H_
-#define BACKEND_VULKAN_VULKANINFO_H_
+#ifndef DAWNNATIVE_VULKAN_VULKANINFO_H_
+#define DAWNNATIVE_VULKAN_VULKANINFO_H_
 
 #include "common/vulkan_platform.h"
 
@@ -85,4 +85,4 @@ namespace backend { namespace vulkan {
 
 }}  // namespace backend::vulkan
 
-#endif  // BACKEND_VULKAN_VULKANINFO_H_
+#endif  // DAWNNATIVE_VULKAN_VULKANINFO_H_