Enable build/header_guard

This CL enables the build/header_guard lint check. The existing headers
which failed the check were updated, missing headers added. An exclusion
file for the generator templates was added as well.

Bug: dawn:1339
Change-Id: If572e460179ad501293d5d6cf01e0ea900daa979
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86207
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>

src/include/CPPLINT.cfg

@@ -1,2 +1 @@
-filter=-build/header_guard
 filter=-legal/copyright

src/include/dawn/EnumClassBitmasks.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_ENUMCLASSBITMASKS_H_
+#define SRC_INCLUDE_DAWN_ENUMCLASSBITMASKS_H_
+
 #include <dawn/EnumClassBitmasks.h>
+
+#endif  // SRC_INCLUDE_DAWN_ENUMCLASSBITMASKS_H_

src/include/dawn/dawn_proc.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_DAWN_PROC_H_
+#define SRC_INCLUDE_DAWN_DAWN_PROC_H_
+
 #include <dawn/dawn_proc.h>
+
+#endif  // SRC_INCLUDE_DAWN_DAWN_PROC_H_

src/include/dawn/dawn_thread_dispatch_proc.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_DAWN_THREAD_DISPATCH_PROC_H_
+#define SRC_INCLUDE_DAWN_DAWN_THREAD_DISPATCH_PROC_H_
+
 #include <dawn/dawn_thread_dispatch_proc.h>
+
+#endif  // SRC_INCLUDE_DAWN_DAWN_THREAD_DISPATCH_PROC_H_

src/include/dawn/dawn_wsi.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_DAWN_WSI_H_
+#define SRC_INCLUDE_DAWN_DAWN_WSI_H_
+
 #include <dawn/dawn_wsi.h>
+
+#endif  // SRC_INCLUDE_DAWN_DAWN_WSI_H_

src/include/dawn/webgpu.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_WEBGPU_H_
+#define SRC_INCLUDE_DAWN_WEBGPU_H_
+
 #include <dawn/webgpu.h>
+
+#endif  // SRC_INCLUDE_DAWN_WEBGPU_H_

src/include/dawn/webgpu_cpp.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_WEBGPU_CPP_H_
+#define SRC_INCLUDE_DAWN_WEBGPU_CPP_H_
+
 #include "dawn/webgpu_cpp.h"
+
+#endif  // SRC_INCLUDE_DAWN_WEBGPU_CPP_H_

src/include/dawn_native/D3D12Backend.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_D3D12BACKEND_H_
+#define SRC_INCLUDE_DAWN_NATIVE_D3D12BACKEND_H_
+
 #include <dawn/native/D3D12Backend.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_D3D12BACKEND_H_

src/include/dawn_native/DawnNative.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_DAWNNATIVE_H_
+#define SRC_INCLUDE_DAWN_NATIVE_DAWNNATIVE_H_
+
 #include <dawn/native/DawnNative.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_DAWNNATIVE_H_

src/include/dawn_native/MetalBackend.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_METALBACKEND_H_
+#define SRC_INCLUDE_DAWN_NATIVE_METALBACKEND_H_
+
 #include <dawn/native/MetalBackend.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_METALBACKEND_H_

src/include/dawn_native/NullBackend.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_NULLBACKEND_H_
+#define SRC_INCLUDE_DAWN_NATIVE_NULLBACKEND_H_
+
 #include <dawn/native/NullBackend.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_NULLBACKEND_H_

src/include/dawn_native/OpenGLBackend.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_OPENGLBACKEND_H_
+#define SRC_INCLUDE_DAWN_NATIVE_OPENGLBACKEND_H_
+
 #include <dawn/native/OpenGLBackend.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_OPENGLBACKEND_H_

src/include/dawn_native/VulkanBackend.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_VULKANBACKEND_H_
+#define SRC_INCLUDE_DAWN_NATIVE_VULKANBACKEND_H_
+
 #include <dawn/native/VulkanBackend.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_VULKANBACKEND_H_

src/include/dawn_native/dawn_native_export.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_NATIVE_DAWN_NATIVE_EXPORT_H_
+#define SRC_INCLUDE_DAWN_NATIVE_DAWN_NATIVE_EXPORT_H_
+
 #include <dawn/native/dawn_native_export.h>
+
+#endif  // SRC_INCLUDE_DAWN_NATIVE_DAWN_NATIVE_EXPORT_H_

src/include/dawn_platform/DawnPlatform.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_PLATFORM_DAWNPLATFORM_H_
+#define SRC_INCLUDE_DAWN_PLATFORM_DAWNPLATFORM_H_
+
 #include <dawn/platform/DawnPlatform.h>
+
+#endif  // SRC_INCLUDE_DAWN_PLATFORM_DAWNPLATFORM_H_

src/include/dawn_wire/Wire.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_WIRE_WIRE_H_
+#define SRC_INCLUDE_DAWN_WIRE_WIRE_H_
+
 #include <dawn/wire/Wire.h>
+
+#endif  // SRC_INCLUDE_DAWN_WIRE_WIRE_H_

src/include/dawn_wire/WireClient.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_WIRE_WIRECLIENT_H_
+#define SRC_INCLUDE_DAWN_WIRE_WIRECLIENT_H_
+
 #include <dawn/wire/WireClient.h>
+
+#endif  // SRC_INCLUDE_DAWN_WIRE_WIRECLIENT_H_

src/include/dawn_wire/WireServer.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_WIRE_WIRESERVER_H_
+#define SRC_INCLUDE_DAWN_WIRE_WIRESERVER_H_
+
 #include <dawn/wire/WireServer.h>
+
+#endif  // SRC_INCLUDE_DAWN_WIRE_WIRESERVER_H_

src/include/dawn_wire/dawn_wire_export.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_DAWN_WIRE_DAWN_WIRE_EXPORT_H_
+#define SRC_INCLUDE_DAWN_WIRE_DAWN_WIRE_EXPORT_H_
+
 #include <dawn/wire/dawn_wire_export.h>
+
+#endif  // SRC_INCLUDE_DAWN_WIRE_DAWN_WIRE_EXPORT_H_

src/include/webgpu/webgpu.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_WEBGPU_WEBGPU_H_
+#define SRC_INCLUDE_WEBGPU_WEBGPU_H_
+
 #include "dawn/webgpu.h"
+
+#endif  // SRC_INCLUDE_WEBGPU_WEBGPU_H_

src/include/webgpu/webgpu_cpp.h

@@ -1 +1,6 @@
+#ifndef SRC_INCLUDE_WEBGPU_WEBGPU_CPP_H_
+#define SRC_INCLUDE_WEBGPU_WEBGPU_CPP_H_
+
 #include <dawn/webgpu_cpp.h>
+
+#endif  // SRC_INCLUDE_WEBGPU_WEBGPU_CPP_H_