cc: Allocate resources on worker context.

cc/resources/resource_format.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/resource_format.h"
 
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
@@ skipping 108 matching lines @@
     case ALPHA_8:
     case LUMINANCE_8:
     case RGB_565:
     case LUMINANCE_F16:
       break;
   }
   NOTREACHED();
   return gfx::BufferFormat::RGBA_8888;
 }
 
+GrPixelConfig ToGrPixelConfig(ResourceFormat format) {
+  switch (format) {
+    case RGBA_8888:
+      return kRGBA_8888_GrPixelConfig;
+    case BGRA_8888:
+      return kBGRA_8888_GrPixelConfig;
+    case RGBA_4444:
+      return kRGBA_4444_GrPixelConfig;
+    case RGBA_F16:
+      return kRGBA_half_GrPixelConfig;
+    default:
+      break;
+  }
+  DCHECK(false) << "Unsupported resource format.";
+  return kSkia8888_GrPixelConfig;
+}
+
 bool IsResourceFormatCompressed(ResourceFormat format) {
   return format == ETC1;
 }
 
 bool DoesResourceFormatSupportAlpha(ResourceFormat format) {
   switch (format) {
     case RGBA_4444:
     case RGBA_8888:
     case BGRA_8888:
     case ALPHA_8:
     case RGBA_F16:
       return true;
     case LUMINANCE_8:
     case RGB_565:
     case ETC1:
     case RED_8:
     case LUMINANCE_F16:
       return false;
   }
   NOTREACHED();
   return false;
 }
 
 }  // namespace cc