Implement TransferableResource StructTraits

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"
 
 namespace cc {
 
-SkColorType ResourceFormatToClosestSkColorType(ResourceFormat format) {
-  // Use kN32_SkColorType if there is no corresponding SkColorType.
-  switch (format) {
-    case RGBA_4444:
-      return kARGB_4444_SkColorType;
-    case RGBA_8888:
-    case BGRA_8888:
-      return kN32_SkColorType;
-    case ALPHA_8:
-      return kAlpha_8_SkColorType;
-    case RGB_565:
-      return kRGB_565_SkColorType;
-    case LUMINANCE_8:
-      return kGray_8_SkColorType;
-    case ETC1:
-    case RED_8:
-    case LUMINANCE_F16:
-      return kN32_SkColorType;
-  }
-  NOTREACHED();
-  return kN32_SkColorType;
-}
-
 int BitsPerPixel(ResourceFormat format) {
   switch (format) {
     case BGRA_8888:
     case RGBA_8888:
       return 32;
     case RGBA_4444:
     case RGB_565:
     case LUMINANCE_F16:
       return 16;
     case ALPHA_8:
@@ skipping 87 matching lines @@
     case ETC1:
     case RED_8:
     case LUMINANCE_F16:
       return false;
   }
   NOTREACHED();
   return false;
 }
 
 }  // namespace cc