diff --git a/src/dawn/native/BUILD.gn b/src/dawn/native/BUILD.gn
index 9f8f713e22..a7389f983b 100644
--- a/src/dawn/native/BUILD.gn
+++ b/src/dawn/native/BUILD.gn
@@ -395,6 +395,18 @@ source_set("sources") {
   # Somehow use dxcompiler.lib makes CoreApp unable to activate
   # WinPIX should be added as third party tools and linked statically
 
+  if (dawn_enable_d3d12) {
+    sources += [
+      "d3d/BlobD3D.cpp",
+      "d3d/BlobD3D.h",
+      "d3d/D3DError.cpp",
+      "d3d/D3DError.h",
+      "d3d/PlatformFunctions.cpp",
+      "d3d/PlatformFunctions.h",
+      "d3d/d3d_platform.h",
+    ]
+  }
+
   if (dawn_enable_d3d12) {
     libs += [ "dxguid.lib" ]
     sources += [
@@ -406,8 +418,6 @@ source_set("sources") {
       "d3d12/BindGroupD3D12.h",
       "d3d12/BindGroupLayoutD3D12.cpp",
       "d3d12/BindGroupLayoutD3D12.h",
-      "d3d12/BlobD3D12.cpp",
-      "d3d12/BlobD3D12.h",
       "d3d12/BufferD3D12.cpp",
       "d3d12/BufferD3D12.h",
       "d3d12/CPUDescriptorHeapAllocationD3D12.cpp",
@@ -422,8 +432,6 @@ source_set("sources") {
       "d3d12/ComputePipelineD3D12.h",
       "d3d12/D3D11on12Util.cpp",
       "d3d12/D3D11on12Util.h",
-      "d3d12/D3D12Error.cpp",
-      "d3d12/D3D12Error.h",
       "d3d12/D3D12Info.cpp",
       "d3d12/D3D12Info.h",
       "d3d12/DeviceD3D12.cpp",
@@ -446,8 +454,8 @@ source_set("sources") {
       "d3d12/PageableD3D12.h",
       "d3d12/PipelineLayoutD3D12.cpp",
       "d3d12/PipelineLayoutD3D12.h",
-      "d3d12/PlatformFunctions.cpp",
-      "d3d12/PlatformFunctions.h",
+      "d3d12/PlatformFunctionsD3D12.cpp",
+      "d3d12/PlatformFunctionsD3D12.h",
       "d3d12/QuerySetD3D12.cpp",
       "d3d12/QuerySetD3D12.h",
       "d3d12/QueueD3D12.cpp",
diff --git a/src/dawn/native/CMakeLists.txt b/src/dawn/native/CMakeLists.txt
index 7452b9e858..e6d1ccf599 100644
--- a/src/dawn/native/CMakeLists.txt
+++ b/src/dawn/native/CMakeLists.txt
@@ -251,6 +251,18 @@ if (WINDOWS_STORE)
     target_link_libraries(dawn_native PRIVATE debug dxgi.lib)
 endif()
 
+if (DAWN_ENABLE_D3D12)
+    target_sources(dawn_native PRIVATE
+        "d3d/BlobD3D.cpp"
+        "d3d/BlobD3D.h"
+        "d3d/D3DError.cpp"
+        "d3d/D3DError.h"
+        "d3d/PlatformFunctions.cpp"
+        "d3d/PlatformFunctions.h"
+        "d3d/d3d_platform.h"
+    )
+endif()
+
 if (DAWN_ENABLE_D3D12)
     target_sources(dawn_native PRIVATE
         "${DAWN_INCLUDE_DIR}/dawn/native/D3D12Backend.h"
@@ -262,8 +274,6 @@ if (DAWN_ENABLE_D3D12)
         "d3d12/BindGroupD3D12.h"
         "d3d12/BindGroupLayoutD3D12.cpp"
         "d3d12/BindGroupLayoutD3D12.h"
-        "d3d12/BlobD3D12.cpp"
-        "d3d12/BlobD3D12.h"
         "d3d12/BufferD3D12.cpp"
         "d3d12/BufferD3D12.h"
         "d3d12/CPUDescriptorHeapAllocationD3D12.cpp"
@@ -278,8 +288,6 @@ if (DAWN_ENABLE_D3D12)
         "d3d12/ComputePipelineD3D12.h"
         "d3d12/D3D11on12Util.cpp"
         "d3d12/D3D11on12Util.h"
-        "d3d12/D3D12Error.cpp"
-        "d3d12/D3D12Error.h"
         "d3d12/D3D12Info.cpp"
         "d3d12/D3D12Info.h"
         "d3d12/DeviceD3D12.cpp"
@@ -302,8 +310,8 @@ if (DAWN_ENABLE_D3D12)
         "d3d12/PageableD3D12.h"
         "d3d12/PipelineLayoutD3D12.cpp"
         "d3d12/PipelineLayoutD3D12.h"
-        "d3d12/PlatformFunctions.cpp"
-        "d3d12/PlatformFunctions.h"
+        "d3d12/PlatformFunctionsD3D12.cpp"
+        "d3d12/PlatformFunctionsD3D12.h"
         "d3d12/QuerySetD3D12.cpp"
         "d3d12/QuerySetD3D12.h"
         "d3d12/QueueD3D12.cpp"
diff --git a/src/dawn/native/Surface.h b/src/dawn/native/Surface.h
index 96da3c2549..d0ea24b4b5 100644
--- a/src/dawn/native/Surface.h
+++ b/src/dawn/native/Surface.h
@@ -24,7 +24,7 @@
 #include "dawn/common/Platform.h"
 
 #if DAWN_PLATFORM_IS(WINDOWS)
-#include "dawn/native/d3d12/d3d12_platform.h"
+#include "dawn/native/d3d/d3d_platform.h"
 #endif  // DAWN_PLATFORM_IS(WINDOWS)
 
 // Forward declare IUnknown
diff --git a/src/dawn/native/d3d12/BlobD3D12.cpp b/src/dawn/native/d3d/BlobD3D.cpp
similarity index 97%
rename from src/dawn/native/d3d12/BlobD3D12.cpp
rename to src/dawn/native/d3d/BlobD3D.cpp
index 3b5965758d..b57690b43c 100644
--- a/src/dawn/native/d3d12/BlobD3D12.cpp
+++ b/src/dawn/native/d3d/BlobD3D.cpp
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "dawn/native/d3d12/BlobD3D12.h"
+#include "dawn/native/d3d/BlobD3D.h"
 
 namespace dawn::native {
 
diff --git a/src/dawn/native/d3d12/BlobD3D12.h b/src/dawn/native/d3d/BlobD3D.h
similarity index 82%
rename from src/dawn/native/d3d12/BlobD3D12.h
rename to src/dawn/native/d3d/BlobD3D.h
index cc8c99c902..e0befb6df5 100644
--- a/src/dawn/native/d3d12/BlobD3D12.h
+++ b/src/dawn/native/d3d/BlobD3D.h
@@ -12,8 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef SRC_DAWN_NATIVE_D3D_BLOBD3D_H_
+#define SRC_DAWN_NATIVE_D3D_BLOBD3D_H_
+
 #include "dawn/native/Blob.h"
-#include "dawn/native/d3d12/d3d12_platform.h"
+#include "dawn/native/d3d/d3d_platform.h"
 
 namespace dawn::native {
 
@@ -21,3 +24,5 @@ Blob CreateBlob(ComPtr<ID3DBlob> blob);
 Blob CreateBlob(ComPtr<IDxcBlob> blob);
 
 }  // namespace dawn::native
+
+#endif  // SRC_DAWN_NATIVE_D3D_BLOBD3D_H_
diff --git a/src/dawn/native/d3d12/D3D12Error.cpp b/src/dawn/native/d3d/D3DError.cpp
similarity index 93%
rename from src/dawn/native/d3d12/D3D12Error.cpp
rename to src/dawn/native/d3d/D3DError.cpp
index 0fda82b599..9b03cef4e6 100644
--- a/src/dawn/native/d3d12/D3D12Error.cpp
+++ b/src/dawn/native/d3d/D3DError.cpp
@@ -12,16 +12,16 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 
 #include <iomanip>
 #include <sstream>
 #include <string>
 
-namespace dawn::native::d3d12 {
+namespace dawn::native::d3d {
 const char* HRESULTAsString(HRESULT result) {
     // There's a lot of possible HRESULTS, but these ones are the ones specifically listed as
-    // being returned from D3D12, in addition to fake codes used internally for testing.
+    // being returned from D3D11 and D3D12, in addition to fake codes used internally for testing.
     // https://docs.microsoft.com/en-us/windows/win32/direct3d12/d3d12-graphics-reference-returnvalues
     switch (result) {
         case S_OK:
@@ -83,4 +83,4 @@ MaybeError CheckOutOfMemoryHRESULTImpl(HRESULT result, const char* context) {
     return CheckHRESULTImpl(result, context);
 }
 
-}  // namespace dawn::native::d3d12
+}  // namespace dawn::native::d3d
diff --git a/src/dawn/native/d3d12/D3D12Error.h b/src/dawn/native/d3d/D3DError.h
similarity index 62%
rename from src/dawn/native/d3d12/D3D12Error.h
rename to src/dawn/native/d3d/D3DError.h
index b058c7c6c0..8cf2630b46 100644
--- a/src/dawn/native/d3d12/D3D12Error.h
+++ b/src/dawn/native/d3d/D3DError.h
@@ -12,14 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef SRC_DAWN_NATIVE_D3D12_D3D12ERROR_H_
-#define SRC_DAWN_NATIVE_D3D12_D3D12ERROR_H_
+#ifndef SRC_DAWN_NATIVE_D3D_D3DERROR_H_
+#define SRC_DAWN_NATIVE_D3D_D3DERROR_H_
 
-#include <d3d12.h>
+#include <winerror.h>
 #include "dawn/native/Error.h"
 #include "dawn/native/ErrorInjector.h"
 
-namespace dawn::native::d3d12 {
+namespace dawn::native::d3d {
 
 constexpr HRESULT E_FAKE_ERROR_FOR_TESTING = MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0xFF);
 constexpr HRESULT E_FAKE_OUTOFMEMORY_ERROR_FOR_TESTING =
@@ -31,15 +31,15 @@ MaybeError CheckHRESULTImpl(HRESULT result, const char* context);
 // Uses CheckRESULT but returns OOM specific error when recoverable.
 MaybeError CheckOutOfMemoryHRESULTImpl(HRESULT result, const char* context);
 
-#define CheckHRESULT(resultIn, contextIn)    \
-    ::dawn::native::d3d12::CheckHRESULTImpl( \
-        INJECT_ERROR_OR_RUN(resultIn, E_FAKE_ERROR_FOR_TESTING), contextIn)
-#define CheckOutOfMemoryHRESULT(resultIn, contextIn)                        \
-    ::dawn::native::d3d12::CheckOutOfMemoryHRESULTImpl(                     \
-        INJECT_ERROR_OR_RUN(resultIn, E_FAKE_OUTOFMEMORY_ERROR_FOR_TESTING, \
-                            E_FAKE_ERROR_FOR_TESTING),                      \
+#define CheckHRESULT(resultIn, contextIn)  \
+    ::dawn::native::d3d::CheckHRESULTImpl( \
+        INJECT_ERROR_OR_RUN(resultIn, ::dawn::native::d3d::E_FAKE_ERROR_FOR_TESTING), contextIn)
+#define CheckOutOfMemoryHRESULT(resultIn, contextIn)                                             \
+    ::dawn::native::d3d::CheckOutOfMemoryHRESULTImpl(                                            \
+        INJECT_ERROR_OR_RUN(resultIn, ::dawn::native::d3d::E_FAKE_OUTOFMEMORY_ERROR_FOR_TESTING, \
+                            ::dawn::native::d3d::E_FAKE_ERROR_FOR_TESTING),                      \
         contextIn)
 
-}  // namespace dawn::native::d3d12
+}  // namespace dawn::native::d3d
 
-#endif  // SRC_DAWN_NATIVE_D3D12_D3D12ERROR_H_
+#endif  // SRC_DAWN_NATIVE_D3D_D3DERROR_H_
diff --git a/src/dawn/native/d3d12/PlatformFunctions.cpp b/src/dawn/native/d3d/PlatformFunctions.cpp
similarity index 69%
rename from src/dawn/native/d3d12/PlatformFunctions.cpp
rename to src/dawn/native/d3d/PlatformFunctions.cpp
index 1a3f3fe1da..52bfa0d0e9 100644
--- a/src/dawn/native/d3d12/PlatformFunctions.cpp
+++ b/src/dawn/native/d3d/PlatformFunctions.cpp
@@ -1,4 +1,4 @@
-// Copyright 2018 The Dawn Authors
+// Copyright 2023 The Dawn Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d/PlatformFunctions.h"
 
 #include <comdef.h>
 
@@ -23,7 +23,7 @@
 
 #include "dawn/common/DynamicLib.h"
 
-namespace dawn::native::d3d12 {
+namespace dawn::native::d3d {
 namespace {
 // Extract Version from "10.0.{Version}.0" if possible, otherwise return 0.
 uint32_t GetWindowsSDKVersionFromDirectoryName(const char* directoryName) {
@@ -101,53 +101,9 @@ PlatformFunctions::PlatformFunctions() = default;
 PlatformFunctions::~PlatformFunctions() = default;
 
 MaybeError PlatformFunctions::LoadFunctions() {
-    DAWN_TRY(LoadD3D12());
     DAWN_TRY(LoadDXGI());
     LoadDXCLibraries();
     DAWN_TRY(LoadFXCompiler());
-    DAWN_TRY(LoadD3D11());
-    LoadPIXRuntime();
-    return {};
-}
-
-MaybeError PlatformFunctions::LoadD3D12() {
-#if DAWN_PLATFORM_IS(WINUWP)
-    d3d12CreateDevice = &D3D12CreateDevice;
-    d3d12GetDebugInterface = &D3D12GetDebugInterface;
-    d3d12SerializeRootSignature = &D3D12SerializeRootSignature;
-    d3d12CreateRootSignatureDeserializer = &D3D12CreateRootSignatureDeserializer;
-    d3d12SerializeVersionedRootSignature = &D3D12SerializeVersionedRootSignature;
-    d3d12CreateVersionedRootSignatureDeserializer = &D3D12CreateVersionedRootSignatureDeserializer;
-#else
-    std::string error;
-    if (!mD3D12Lib.Open("d3d12.dll", &error) ||
-        !mD3D12Lib.GetProc(&d3d12CreateDevice, "D3D12CreateDevice", &error) ||
-        !mD3D12Lib.GetProc(&d3d12GetDebugInterface, "D3D12GetDebugInterface", &error) ||
-        !mD3D12Lib.GetProc(&d3d12SerializeRootSignature, "D3D12SerializeRootSignature", &error) ||
-        !mD3D12Lib.GetProc(&d3d12CreateRootSignatureDeserializer,
-                           "D3D12CreateRootSignatureDeserializer", &error) ||
-        !mD3D12Lib.GetProc(&d3d12SerializeVersionedRootSignature,
-                           "D3D12SerializeVersionedRootSignature", &error) ||
-        !mD3D12Lib.GetProc(&d3d12CreateVersionedRootSignatureDeserializer,
-                           "D3D12CreateVersionedRootSignatureDeserializer", &error)) {
-        return DAWN_INTERNAL_ERROR(error.c_str());
-    }
-#endif
-
-    return {};
-}
-
-MaybeError PlatformFunctions::LoadD3D11() {
-#if DAWN_PLATFORM_IS(WINUWP)
-    d3d11on12CreateDevice = &D3D11On12CreateDevice;
-#else
-    std::string error;
-    if (!mD3D11Lib.Open("d3d11.dll", &error) ||
-        !mD3D11Lib.GetProc(&d3d11on12CreateDevice, "D3D11On12CreateDevice", &error)) {
-        return DAWN_INTERNAL_ERROR(error.c_str());
-    }
-#endif
-
     return {};
 }
 
@@ -240,28 +196,10 @@ MaybeError PlatformFunctions::LoadFXCompiler() {
     return {};
 }
 
-bool PlatformFunctions::IsPIXEventRuntimeLoaded() const {
-    return mPIXEventRuntimeLib.Valid();
-}
-
 // Use Backend::IsDXCAvaliable if possible, which also check the DXC is no older than a given
 // version
 bool PlatformFunctions::IsDXCBinaryAvailable() const {
     return mDXILLib.Valid() && mDXCompilerLib.Valid();
 }
 
-void PlatformFunctions::LoadPIXRuntime() {
-    // TODO(dawn:766):
-    // In UWP PIX should be statically linked WinPixEventRuntime_UAP.lib
-    // So maybe we should put WinPixEventRuntime as a third party package
-    // Currently PIX is not going to be loaded in UWP since the following
-    // mPIXEventRuntimeLib.Open will fail.
-    if (!mPIXEventRuntimeLib.Open("WinPixEventRuntime.dll") ||
-        !mPIXEventRuntimeLib.GetProc(&pixBeginEventOnCommandList, "PIXBeginEventOnCommandList") ||
-        !mPIXEventRuntimeLib.GetProc(&pixEndEventOnCommandList, "PIXEndEventOnCommandList") ||
-        !mPIXEventRuntimeLib.GetProc(&pixSetMarkerOnCommandList, "PIXSetMarkerOnCommandList")) {
-        mPIXEventRuntimeLib.Close();
-    }
-}
-
-}  // namespace dawn::native::d3d12
+}  // namespace dawn::native::d3d
diff --git a/src/dawn/native/d3d/PlatformFunctions.h b/src/dawn/native/d3d/PlatformFunctions.h
new file mode 100644
index 0000000000..59fe910235
--- /dev/null
+++ b/src/dawn/native/d3d/PlatformFunctions.h
@@ -0,0 +1,78 @@
+// Copyright 2023 The Dawn Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef SRC_DAWN_NATIVE_D3D_PLATFORMFUNCTIONS_H_
+#define SRC_DAWN_NATIVE_D3D_PLATFORMFUNCTIONS_H_
+
+#include <d3dcompiler.h>
+
+#include <string>
+
+#include "dawn/native/d3d/d3d_platform.h"
+
+#include "dawn/common/DynamicLib.h"
+#include "dawn/native/Error.h"
+
+namespace dawn::native::d3d {
+
+// Loads the functions required from the platform dynamically so that we don't need to rely on
+// them being present in the system. For example linking against d3d12.lib would prevent
+// dawn_native from loading on Windows 7 system where d3d12.dll doesn't exist.
+class PlatformFunctions {
+  public:
+    PlatformFunctions();
+    virtual ~PlatformFunctions();
+
+    MaybeError LoadFunctions();
+    bool IsPIXEventRuntimeLoaded() const;
+    bool IsDXCBinaryAvailable() const;
+
+    // Functions from dxgi.dll
+    using PFN_DXGI_GET_DEBUG_INTERFACE1 = HRESULT(WINAPI*)(UINT Flags,
+                                                           REFIID riid,
+                                                           _COM_Outptr_ void** pDebug);
+    PFN_DXGI_GET_DEBUG_INTERFACE1 dxgiGetDebugInterface1 = nullptr;
+
+    using PFN_CREATE_DXGI_FACTORY2 = HRESULT(WINAPI*)(UINT Flags,
+                                                      REFIID riid,
+                                                      _COM_Outptr_ void** ppFactory);
+    PFN_CREATE_DXGI_FACTORY2 createDxgiFactory2 = nullptr;
+
+    // Functions from dxcompiler.dll
+    using PFN_DXC_CREATE_INSTANCE = HRESULT(WINAPI*)(REFCLSID rclsid,
+                                                     REFIID riid,
+                                                     _COM_Outptr_ void** ppCompiler);
+    PFN_DXC_CREATE_INSTANCE dxcCreateInstance = nullptr;
+
+    // Functions from d3d3compiler.dll
+    pD3DCompile d3dCompile = nullptr;
+    pD3DDisassemble d3dDisassemble = nullptr;
+
+  private:
+    MaybeError LoadDXGI();
+    void LoadDXCLibraries();
+    void LoadDXIL(const std::string& baseWindowsSDKPath);
+    void LoadDXCompiler(const std::string& baseWindowsSDKPath);
+    MaybeError LoadFXCompiler();
+    void LoadPIXRuntime();
+
+    DynamicLib mDXGILib;
+    DynamicLib mDXILLib;
+    DynamicLib mDXCompilerLib;
+    DynamicLib mFXCompilerLib;
+};
+
+}  // namespace dawn::native::d3d
+
+#endif  // SRC_DAWN_NATIVE_D3D_PLATFORMFUNCTIONS_H_
diff --git a/src/dawn/native/d3d/d3d_platform.h b/src/dawn/native/d3d/d3d_platform.h
new file mode 100644
index 0000000000..ac7b9d359e
--- /dev/null
+++ b/src/dawn/native/d3d/d3d_platform.h
@@ -0,0 +1,36 @@
+// Copyright 2023 The Dawn Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef SRC_DAWN_NATIVE_D3D_D3D_PLATFORM_H_
+#define SRC_DAWN_NATIVE_D3D_D3D_PLATFORM_H_
+
+// Pre-emptively include windows.h but remove its macros so that they aren't set when declaring the
+// COM interfaces. Otherwise ID3D12InfoQueue::GetMessage would be either GetMessageA or GetMessageW
+// which causes compilation errors.
+// NOLINTNEXTLINE(build/include_order)
+#include "dawn/common/windows_with_undefs.h"
+
+#include <d3d11_2.h>  // NOLINT(build/include_order)
+#include <dxcapi.h>   // NOLINT(build/include_order)
+#include <dxgi1_4.h>  // NOLINT(build/include_order)
+#include <wrl.h>      // NOLINT(build/include_order)
+
+// DXProgrammableCapture.h takes a dependency on other platform header
+// files, so it must be defined after them.
+#include <DXProgrammableCapture.h>  // NOLINT(build/include_order)
+#include <dxgidebug.h>              // NOLINT(build/include_order)
+
+using Microsoft::WRL::ComPtr;
+
+#endif  // SRC_DAWN_NATIVE_D3D_D3D_PLATFORM_H_
diff --git a/src/dawn/native/d3d12/AdapterD3D12.cpp b/src/dawn/native/d3d12/AdapterD3D12.cpp
index 2d39752674..4859208004 100644
--- a/src/dawn/native/d3d12/AdapterD3D12.cpp
+++ b/src/dawn/native/d3d12/AdapterD3D12.cpp
@@ -20,10 +20,10 @@
 #include "dawn/common/Platform.h"
 #include "dawn/common/WindowsUtils.h"
 #include "dawn/native/Instance.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/BackendD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/BackendD3D12.cpp b/src/dawn/native/d3d12/BackendD3D12.cpp
index 6e5fff584e..1dca30b87b 100644
--- a/src/dawn/native/d3d12/BackendD3D12.cpp
+++ b/src/dawn/native/d3d12/BackendD3D12.cpp
@@ -19,9 +19,9 @@
 #include "dawn/common/Log.h"
 #include "dawn/native/D3D12Backend.h"
 #include "dawn/native/Instance.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/AdapterD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/BufferD3D12.cpp b/src/dawn/native/d3d12/BufferD3D12.cpp
index 28a0ea9cc3..82edbde767 100644
--- a/src/dawn/native/d3d12/BufferD3D12.cpp
+++ b/src/dawn/native/d3d12/BufferD3D12.cpp
@@ -21,8 +21,8 @@
 #include "dawn/common/Math.h"
 #include "dawn/native/CommandBuffer.h"
 #include "dawn/native/DynamicUploader.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/CommandRecordingContext.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
 #include "dawn/native/d3d12/ResidencyManagerD3D12.h"
diff --git a/src/dawn/native/d3d12/CommandAllocatorManager.cpp b/src/dawn/native/d3d12/CommandAllocatorManager.cpp
index 892cc3277b..03bf3af16f 100644
--- a/src/dawn/native/d3d12/CommandAllocatorManager.cpp
+++ b/src/dawn/native/d3d12/CommandAllocatorManager.cpp
@@ -14,7 +14,7 @@
 
 #include "dawn/native/d3d12/CommandAllocatorManager.h"
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 
 #include "dawn/common/Assert.h"
diff --git a/src/dawn/native/d3d12/CommandBufferD3D12.cpp b/src/dawn/native/d3d12/CommandBufferD3D12.cpp
index 53aa85617e..8ebdc73660 100644
--- a/src/dawn/native/d3d12/CommandBufferD3D12.cpp
+++ b/src/dawn/native/d3d12/CommandBufferD3D12.cpp
@@ -28,7 +28,7 @@
 #include "dawn/native/d3d12/ComputePipelineD3D12.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/PipelineLayoutD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/QuerySetD3D12.h"
 #include "dawn/native/d3d12/RenderPassBuilderD3D12.h"
 #include "dawn/native/d3d12/RenderPipelineD3D12.h"
diff --git a/src/dawn/native/d3d12/CommandRecordingContext.cpp b/src/dawn/native/d3d12/CommandRecordingContext.cpp
index 6a368a07b8..72f29b4cf6 100644
--- a/src/dawn/native/d3d12/CommandRecordingContext.cpp
+++ b/src/dawn/native/d3d12/CommandRecordingContext.cpp
@@ -20,8 +20,8 @@
 #include <string>
 #include <utility>
 
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/CommandAllocatorManager.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
 #include "dawn/native/d3d12/ResidencyManagerD3D12.h"
diff --git a/src/dawn/native/d3d12/ComputePipelineD3D12.cpp b/src/dawn/native/d3d12/ComputePipelineD3D12.cpp
index 8dc05fce3b..e781f0f9c1 100644
--- a/src/dawn/native/d3d12/ComputePipelineD3D12.cpp
+++ b/src/dawn/native/d3d12/ComputePipelineD3D12.cpp
@@ -18,11 +18,11 @@
 #include <utility>
 
 #include "dawn/native/CreatePipelineAsyncTask.h"
-#include "dawn/native/d3d12/BlobD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/BlobD3D.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/PipelineLayoutD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/ShaderModuleD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
 
diff --git a/src/dawn/native/d3d12/D3D11on12Util.cpp b/src/dawn/native/d3d12/D3D11on12Util.cpp
index 0d165a5598..83747f1bdf 100644
--- a/src/dawn/native/d3d12/D3D11on12Util.cpp
+++ b/src/dawn/native/d3d12/D3D11on12Util.cpp
@@ -22,7 +22,7 @@
 #include "dawn/common/HashUtils.h"
 #include "dawn/common/Log.h"
 #include "dawn/native/D3D12Backend.h"
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/D3D12Info.cpp b/src/dawn/native/d3d12/D3D12Info.cpp
index d6d8dde71a..ee927ef36b 100644
--- a/src/dawn/native/d3d12/D3D12Info.cpp
+++ b/src/dawn/native/d3d12/D3D12Info.cpp
@@ -17,10 +17,10 @@
 #include <utility>
 
 #include "dawn/common/GPUInfo.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/AdapterD3D12.h"
 #include "dawn/native/d3d12/BackendD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 
 namespace dawn::native::d3d12 {
 
diff --git a/src/dawn/native/d3d12/DeviceD3D12.cpp b/src/dawn/native/d3d12/DeviceD3D12.cpp
index 43fa4cf6eb..0e0862a96b 100644
--- a/src/dawn/native/d3d12/DeviceD3D12.cpp
+++ b/src/dawn/native/d3d12/DeviceD3D12.cpp
@@ -23,6 +23,7 @@
 #include "dawn/native/D3D12Backend.h"
 #include "dawn/native/DynamicUploader.h"
 #include "dawn/native/Instance.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/AdapterD3D12.h"
 #include "dawn/native/d3d12/BackendD3D12.h"
 #include "dawn/native/d3d12/BindGroupD3D12.h"
@@ -31,10 +32,9 @@
 #include "dawn/native/d3d12/CommandBufferD3D12.h"
 #include "dawn/native/d3d12/ComputePipelineD3D12.h"
 #include "dawn/native/d3d12/D3D11on12Util.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/ExternalImageDXGIImpl.h"
 #include "dawn/native/d3d12/PipelineLayoutD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/QuerySetD3D12.h"
 #include "dawn/native/d3d12/QueueD3D12.h"
 #include "dawn/native/d3d12/RenderPipelineD3D12.h"
diff --git a/src/dawn/native/d3d12/FenceD3D12.cpp b/src/dawn/native/d3d12/FenceD3D12.cpp
index 5838ca0ff2..562f8ba8f9 100644
--- a/src/dawn/native/d3d12/FenceD3D12.cpp
+++ b/src/dawn/native/d3d12/FenceD3D12.cpp
@@ -18,7 +18,7 @@
 
 #include "dawn/common/Log.h"
 #include "dawn/native/Error.h"
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/HeapAllocatorD3D12.cpp b/src/dawn/native/d3d12/HeapAllocatorD3D12.cpp
index 28349817a2..dd712706f9 100644
--- a/src/dawn/native/d3d12/HeapAllocatorD3D12.cpp
+++ b/src/dawn/native/d3d12/HeapAllocatorD3D12.cpp
@@ -16,7 +16,7 @@
 
 #include <utility>
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
 #include "dawn/native/d3d12/ResidencyManagerD3D12.h"
diff --git a/src/dawn/native/d3d12/PipelineLayoutD3D12.cpp b/src/dawn/native/d3d12/PipelineLayoutD3D12.cpp
index aaab8c6262..1b972f94a8 100644
--- a/src/dawn/native/d3d12/PipelineLayoutD3D12.cpp
+++ b/src/dawn/native/d3d12/PipelineLayoutD3D12.cpp
@@ -19,10 +19,10 @@
 
 #include "dawn/common/Assert.h"
 #include "dawn/common/BitSetIterator.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/BindGroupLayoutD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 
 using Microsoft::WRL::ComPtr;
 
diff --git a/src/dawn/native/d3d12/PlatformFunctionsD3D12.cpp b/src/dawn/native/d3d12/PlatformFunctionsD3D12.cpp
new file mode 100644
index 0000000000..a2499976c8
--- /dev/null
+++ b/src/dawn/native/d3d12/PlatformFunctionsD3D12.cpp
@@ -0,0 +1,99 @@
+// Copyright 2018 The Dawn Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
+
+#include <comdef.h>
+
+#include <algorithm>
+#include <array>
+#include <sstream>
+#include <utility>
+
+#include "dawn/common/DynamicLib.h"
+
+namespace dawn::native::d3d12 {
+
+PlatformFunctions::PlatformFunctions() = default;
+PlatformFunctions::~PlatformFunctions() = default;
+
+MaybeError PlatformFunctions::LoadFunctions() {
+    DAWN_TRY(Base::LoadFunctions());
+
+    DAWN_TRY(LoadD3D12());
+    DAWN_TRY(LoadD3D11());
+    LoadPIXRuntime();
+    return {};
+}
+
+MaybeError PlatformFunctions::LoadD3D12() {
+#if DAWN_PLATFORM_IS(WINUWP)
+    d3d12CreateDevice = &D3D12CreateDevice;
+    d3d12GetDebugInterface = &D3D12GetDebugInterface;
+    d3d12SerializeRootSignature = &D3D12SerializeRootSignature;
+    d3d12CreateRootSignatureDeserializer = &D3D12CreateRootSignatureDeserializer;
+    d3d12SerializeVersionedRootSignature = &D3D12SerializeVersionedRootSignature;
+    d3d12CreateVersionedRootSignatureDeserializer = &D3D12CreateVersionedRootSignatureDeserializer;
+#else
+    std::string error;
+    if (!mD3D12Lib.Open("d3d12.dll", &error) ||
+        !mD3D12Lib.GetProc(&d3d12CreateDevice, "D3D12CreateDevice", &error) ||
+        !mD3D12Lib.GetProc(&d3d12GetDebugInterface, "D3D12GetDebugInterface", &error) ||
+        !mD3D12Lib.GetProc(&d3d12SerializeRootSignature, "D3D12SerializeRootSignature", &error) ||
+        !mD3D12Lib.GetProc(&d3d12CreateRootSignatureDeserializer,
+                           "D3D12CreateRootSignatureDeserializer", &error) ||
+        !mD3D12Lib.GetProc(&d3d12SerializeVersionedRootSignature,
+                           "D3D12SerializeVersionedRootSignature", &error) ||
+        !mD3D12Lib.GetProc(&d3d12CreateVersionedRootSignatureDeserializer,
+                           "D3D12CreateVersionedRootSignatureDeserializer", &error)) {
+        return DAWN_INTERNAL_ERROR(error.c_str());
+    }
+#endif
+
+    return {};
+}
+
+MaybeError PlatformFunctions::LoadD3D11() {
+#if DAWN_PLATFORM_IS(WINUWP)
+    d3d11on12CreateDevice = &D3D11On12CreateDevice;
+#else
+    std::string error;
+    if (!mD3D11Lib.Open("d3d11.dll", &error) ||
+        !mD3D11Lib.GetProc(&d3d11on12CreateDevice, "D3D11On12CreateDevice", &error)) {
+        return DAWN_INTERNAL_ERROR(error.c_str());
+    }
+#endif
+
+    return {};
+}
+
+bool PlatformFunctions::IsPIXEventRuntimeLoaded() const {
+    return mPIXEventRuntimeLib.Valid();
+}
+
+void PlatformFunctions::LoadPIXRuntime() {
+    // TODO(dawn:766):
+    // In UWP PIX should be statically linked WinPixEventRuntime_UAP.lib
+    // So maybe we should put WinPixEventRuntime as a third party package
+    // Currently PIX is not going to be loaded in UWP since the following
+    // mPIXEventRuntimeLib.Open will fail.
+    if (!mPIXEventRuntimeLib.Open("WinPixEventRuntime.dll") ||
+        !mPIXEventRuntimeLib.GetProc(&pixBeginEventOnCommandList, "PIXBeginEventOnCommandList") ||
+        !mPIXEventRuntimeLib.GetProc(&pixEndEventOnCommandList, "PIXEndEventOnCommandList") ||
+        !mPIXEventRuntimeLib.GetProc(&pixSetMarkerOnCommandList, "PIXSetMarkerOnCommandList")) {
+        mPIXEventRuntimeLib.Close();
+    }
+}
+
+}  // namespace dawn::native::d3d12
diff --git a/src/dawn/native/d3d12/PlatformFunctions.h b/src/dawn/native/d3d12/PlatformFunctionsD3D12.h
similarity index 67%
rename from src/dawn/native/d3d12/PlatformFunctions.h
rename to src/dawn/native/d3d12/PlatformFunctionsD3D12.h
index fca1e51ba0..af6ae358af 100644
--- a/src/dawn/native/d3d12/PlatformFunctions.h
+++ b/src/dawn/native/d3d12/PlatformFunctionsD3D12.h
@@ -19,6 +19,7 @@
 
 #include <string>
 
+#include "dawn/native/d3d/PlatformFunctions.h"
 #include "dawn/native/d3d12/d3d12_platform.h"
 
 #include "dawn/common/DynamicLib.h"
@@ -29,14 +30,13 @@ namespace dawn::native::d3d12 {
 // Loads the functions required from the platform dynamically so that we don't need to rely on
 // them being present in the system. For example linking against d3d12.lib would prevent
 // dawn_native from loading on Windows 7 system where d3d12.dll doesn't exist.
-class PlatformFunctions {
+class PlatformFunctions : public d3d::PlatformFunctions {
   public:
     PlatformFunctions();
-    ~PlatformFunctions();
+    ~PlatformFunctions() override;
 
     MaybeError LoadFunctions();
     bool IsPIXEventRuntimeLoaded() const;
-    bool IsDXCBinaryAvailable() const;
 
     // Functions from d3d12.dll
     PFN_D3D12_CREATE_DEVICE d3d12CreateDevice = nullptr;
@@ -48,27 +48,6 @@ class PlatformFunctions {
     PFN_D3D12_CREATE_VERSIONED_ROOT_SIGNATURE_DESERIALIZER
     d3d12CreateVersionedRootSignatureDeserializer = nullptr;
 
-    // Functions from dxgi.dll
-    using PFN_DXGI_GET_DEBUG_INTERFACE1 = HRESULT(WINAPI*)(UINT Flags,
-                                                           REFIID riid,
-                                                           _COM_Outptr_ void** pDebug);
-    PFN_DXGI_GET_DEBUG_INTERFACE1 dxgiGetDebugInterface1 = nullptr;
-
-    using PFN_CREATE_DXGI_FACTORY2 = HRESULT(WINAPI*)(UINT Flags,
-                                                      REFIID riid,
-                                                      _COM_Outptr_ void** ppFactory);
-    PFN_CREATE_DXGI_FACTORY2 createDxgiFactory2 = nullptr;
-
-    // Functions from dxcompiler.dll
-    using PFN_DXC_CREATE_INSTANCE = HRESULT(WINAPI*)(REFCLSID rclsid,
-                                                     REFIID riid,
-                                                     _COM_Outptr_ void** ppCompiler);
-    PFN_DXC_CREATE_INSTANCE dxcCreateInstance = nullptr;
-
-    // Functions from d3d3compiler.dll
-    pD3DCompile d3dCompile = nullptr;
-    pD3DDisassemble d3dDisassemble = nullptr;
-
     // Functions from WinPixEventRuntime.dll
     using PFN_PIX_END_EVENT_ON_COMMAND_LIST =
         HRESULT(WINAPI*)(ID3D12GraphicsCommandList* commandList);
@@ -90,21 +69,14 @@ class PlatformFunctions {
     PFN_D3D11ON12_CREATE_DEVICE d3d11on12CreateDevice = nullptr;
 
   private:
+    using Base = d3d::PlatformFunctions;
+
     MaybeError LoadD3D12();
     MaybeError LoadD3D11();
-    MaybeError LoadDXGI();
-    void LoadDXCLibraries();
-    void LoadDXIL(const std::string& baseWindowsSDKPath);
-    void LoadDXCompiler(const std::string& baseWindowsSDKPath);
-    MaybeError LoadFXCompiler();
     void LoadPIXRuntime();
 
     DynamicLib mD3D12Lib;
     DynamicLib mD3D11Lib;
-    DynamicLib mDXGILib;
-    DynamicLib mDXILLib;
-    DynamicLib mDXCompilerLib;
-    DynamicLib mFXCompilerLib;
     DynamicLib mPIXEventRuntimeLib;
 };
 
diff --git a/src/dawn/native/d3d12/QuerySetD3D12.cpp b/src/dawn/native/d3d12/QuerySetD3D12.cpp
index 2f8ea05c11..9f7ed07944 100644
--- a/src/dawn/native/d3d12/QuerySetD3D12.cpp
+++ b/src/dawn/native/d3d12/QuerySetD3D12.cpp
@@ -16,7 +16,7 @@
 
 #include <algorithm>
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
 
diff --git a/src/dawn/native/d3d12/QueueD3D12.cpp b/src/dawn/native/d3d12/QueueD3D12.cpp
index 5d4ca0901d..22fea5768a 100644
--- a/src/dawn/native/d3d12/QueueD3D12.cpp
+++ b/src/dawn/native/d3d12/QueueD3D12.cpp
@@ -18,8 +18,8 @@
 #include "dawn/native/CommandValidation.h"
 #include "dawn/native/Commands.h"
 #include "dawn/native/DynamicUploader.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/CommandBufferD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
 #include "dawn/platform/DawnPlatform.h"
diff --git a/src/dawn/native/d3d12/RenderPipelineD3D12.cpp b/src/dawn/native/d3d12/RenderPipelineD3D12.cpp
index 563dab69a5..6cfa55d614 100644
--- a/src/dawn/native/d3d12/RenderPipelineD3D12.cpp
+++ b/src/dawn/native/d3d12/RenderPipelineD3D12.cpp
@@ -22,11 +22,11 @@
 #include "dawn/common/Assert.h"
 #include "dawn/common/Log.h"
 #include "dawn/native/CreatePipelineAsyncTask.h"
-#include "dawn/native/d3d12/BlobD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/BlobD3D.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/PipelineLayoutD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/ShaderModuleD3D12.h"
 #include "dawn/native/d3d12/TextureD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
diff --git a/src/dawn/native/d3d12/ResidencyManagerD3D12.cpp b/src/dawn/native/d3d12/ResidencyManagerD3D12.cpp
index 2952505500..f6fb404076 100644
--- a/src/dawn/native/d3d12/ResidencyManagerD3D12.cpp
+++ b/src/dawn/native/d3d12/ResidencyManagerD3D12.cpp
@@ -17,8 +17,8 @@
 #include <algorithm>
 #include <vector>
 
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/AdapterD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/Forward.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
diff --git a/src/dawn/native/d3d12/ResourceAllocatorManagerD3D12.cpp b/src/dawn/native/d3d12/ResourceAllocatorManagerD3D12.cpp
index a4329e6592..2e62d7c2df 100644
--- a/src/dawn/native/d3d12/ResourceAllocatorManagerD3D12.cpp
+++ b/src/dawn/native/d3d12/ResourceAllocatorManagerD3D12.cpp
@@ -18,7 +18,7 @@
 #include <limits>
 #include <utility>
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/HeapAllocatorD3D12.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
diff --git a/src/dawn/native/d3d12/ResourceHeapAllocationD3D12.cpp b/src/dawn/native/d3d12/ResourceHeapAllocationD3D12.cpp
index 862f87b6dd..77db18448c 100644
--- a/src/dawn/native/d3d12/ResourceHeapAllocationD3D12.cpp
+++ b/src/dawn/native/d3d12/ResourceHeapAllocationD3D12.cpp
@@ -16,7 +16,7 @@
 
 #include <utility>
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/ShaderModuleD3D12.cpp b/src/dawn/native/d3d12/ShaderModuleD3D12.cpp
index 903ecea9bc..a7047b1aba 100644
--- a/src/dawn/native/d3d12/ShaderModuleD3D12.cpp
+++ b/src/dawn/native/d3d12/ShaderModuleD3D12.cpp
@@ -32,14 +32,14 @@
 #include "dawn/native/CacheRequest.h"
 #include "dawn/native/Pipeline.h"
 #include "dawn/native/TintUtils.h"
+#include "dawn/native/d3d/BlobD3D.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/AdapterD3D12.h"
 #include "dawn/native/d3d12/BackendD3D12.h"
 #include "dawn/native/d3d12/BindGroupLayoutD3D12.h"
-#include "dawn/native/d3d12/BlobD3D12.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/PipelineLayoutD3D12.h"
-#include "dawn/native/d3d12/PlatformFunctions.h"
+#include "dawn/native/d3d12/PlatformFunctionsD3D12.h"
 #include "dawn/native/d3d12/UtilsD3D12.h"
 #include "dawn/native/stream/BlobSource.h"
 #include "dawn/native/stream/ByteVectorSink.h"
diff --git a/src/dawn/native/d3d12/ShaderVisibleDescriptorAllocatorD3D12.cpp b/src/dawn/native/d3d12/ShaderVisibleDescriptorAllocatorD3D12.cpp
index fe99a63ac9..14a117bae5 100644
--- a/src/dawn/native/d3d12/ShaderVisibleDescriptorAllocatorD3D12.cpp
+++ b/src/dawn/native/d3d12/ShaderVisibleDescriptorAllocatorD3D12.cpp
@@ -18,7 +18,7 @@
 #include <limits>
 #include <utility>
 
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/GPUDescriptorHeapAllocationD3D12.h"
 #include "dawn/native/d3d12/ResidencyManagerD3D12.h"
diff --git a/src/dawn/native/d3d12/StagingDescriptorAllocatorD3D12.cpp b/src/dawn/native/d3d12/StagingDescriptorAllocatorD3D12.cpp
index f30016a2c3..2960ed00e8 100644
--- a/src/dawn/native/d3d12/StagingDescriptorAllocatorD3D12.cpp
+++ b/src/dawn/native/d3d12/StagingDescriptorAllocatorD3D12.cpp
@@ -17,7 +17,7 @@
 #include <utility>
 
 #include "dawn/common/Math.h"
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/SwapChainD3D12.cpp b/src/dawn/native/d3d12/SwapChainD3D12.cpp
index fa562f20c8..7e814f8aba 100644
--- a/src/dawn/native/d3d12/SwapChainD3D12.cpp
+++ b/src/dawn/native/d3d12/SwapChainD3D12.cpp
@@ -20,7 +20,7 @@
 
 #include "dawn/dawn_wsi.h"
 #include "dawn/native/Surface.h"
-#include "dawn/native/d3d12/D3D12Error.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/TextureD3D12.h"
 
diff --git a/src/dawn/native/d3d12/TextureD3D12.cpp b/src/dawn/native/d3d12/TextureD3D12.cpp
index 2d08a14bfa..3c99d880c9 100644
--- a/src/dawn/native/d3d12/TextureD3D12.cpp
+++ b/src/dawn/native/d3d12/TextureD3D12.cpp
@@ -25,10 +25,10 @@
 #include "dawn/native/IntegerTypes.h"
 #include "dawn/native/ResourceMemoryAllocation.h"
 #include "dawn/native/ToBackend.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/BufferD3D12.h"
 #include "dawn/native/d3d12/CommandRecordingContext.h"
 #include "dawn/native/d3d12/D3D11on12Util.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 #include "dawn/native/d3d12/Forward.h"
 #include "dawn/native/d3d12/HeapD3D12.h"
diff --git a/src/dawn/native/d3d12/UtilsD3D12.cpp b/src/dawn/native/d3d12/UtilsD3D12.cpp
index e706d8f658..b508300f8e 100644
--- a/src/dawn/native/d3d12/UtilsD3D12.cpp
+++ b/src/dawn/native/d3d12/UtilsD3D12.cpp
@@ -21,9 +21,9 @@
 #include "dawn/common/Assert.h"
 #include "dawn/native/CommandValidation.h"
 #include "dawn/native/Format.h"
+#include "dawn/native/d3d/D3DError.h"
 #include "dawn/native/d3d12/BufferD3D12.h"
 #include "dawn/native/d3d12/CommandRecordingContext.h"
-#include "dawn/native/d3d12/D3D12Error.h"
 #include "dawn/native/d3d12/DeviceD3D12.h"
 
 namespace dawn::native::d3d12 {
diff --git a/src/dawn/native/d3d12/d3d12_platform.h b/src/dawn/native/d3d12/d3d12_platform.h
index 59542bf883..c0db1b5a8c 100644
--- a/src/dawn/native/d3d12/d3d12_platform.h
+++ b/src/dawn/native/d3d12/d3d12_platform.h
@@ -15,24 +15,9 @@
 #ifndef SRC_DAWN_NATIVE_D3D12_D3D12_PLATFORM_H_
 #define SRC_DAWN_NATIVE_D3D12_D3D12_PLATFORM_H_
 
-// Pre-emptively include windows.h but remove its macros so that they aren't set when declaring the
-// COM interfaces. Otherwise ID3D12InfoQueue::GetMessage would be either GetMessageA or GetMessageW
-// which causes compilation errors.
-// NOLINTNEXTLINE(build/include_order)
-#include "dawn/common/windows_with_undefs.h"
+#include "dawn/native/d3d/d3d_platform.h"
 
-#include <d3d11_2.h>    // NOLINT(build/include_order)
 #include <d3d11on12.h>  // NOLINT(build/include_order)
 #include <d3d12.h>      // NOLINT(build/include_order)
-#include <dxcapi.h>     // NOLINT(build/include_order)
-#include <dxgi1_4.h>    // NOLINT(build/include_order)
-#include <wrl.h>        // NOLINT(build/include_order)
-
-// DXProgrammableCapture.h takes a dependency on other platform header
-// files, so it must be defined after them.
-#include <DXProgrammableCapture.h>  // NOLINT(build/include_order)
-#include <dxgidebug.h>              // NOLINT(build/include_order)
-
-using Microsoft::WRL::ComPtr;
 
 #endif  // SRC_DAWN_NATIVE_D3D12_D3D12_PLATFORM_H_