Patch from https://codereview.chromium.org/11111005/ without actual file deletes

cc/platform_color.h

 // Copyright 2011 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.
 
 #ifndef PlatformColor_h
 #define PlatformColor_h
 
-#include "Extensions3D.h"
-#include "GraphicsContext3D.h"
+#include "third_party/khronos/GLES2/gl2ext.h"
+#include "third_party/khronos/GLES2/gl2.h"
 #include "SkTypes.h" 
 #include <public/WebGraphicsContext3D.h>
 
 namespace cc {
 
 class PlatformColor {
 public:
-    static GraphicsContext3D::SourceDataFormat format()
+    enum SourceDataFormat { SourceFormatRGBA8, SourceFormatBGRA8 };
+
+    static SourceDataFormat format()
     {
-        return SK_B32_SHIFT ? GraphicsContext3D::SourceFormatRGBA8 : GraphicsContext3D::SourceFormatBGRA8;
+        return SK_B32_SHIFT ? SourceFormatRGBA8 : SourceFormatBGRA8;
     }
 
     // Returns the most efficient texture format for this platform.
-    static GC3Denum bestTextureFormat(WebKit::WebGraphicsContext3D* context, bool supportsBGRA8888)
+    static GLenum bestTextureFormat(WebKit::WebGraphicsContext3D* context, bool supportsBGRA8888)
     {
-        GC3Denum textureFormat = GraphicsContext3D::RGBA;
+        GLenum textureFormat = GL_RGBA;
         switch (format()) {
-        case GraphicsContext3D::SourceFormatRGBA8:
+        case SourceFormatRGBA8:
             break;
-        case GraphicsContext3D::SourceFormatBGRA8:
+        case SourceFormatBGRA8:
             if (supportsBGRA8888)
-                textureFormat = Extensions3D::BGRA_EXT;
+                textureFormat = GL_BGRA_EXT;
             break;
         default:
             ASSERT_NOT_REACHED();
             break;
         }
         return textureFormat;
     }
 
     // Return true if the given texture format has the same component order
     // as the color on this platform.
-    static bool sameComponentOrder(GC3Denum textureFormat)
+    static bool sameComponentOrder(GLenum textureFormat)
     {
         switch (format()) {
-        case GraphicsContext3D::SourceFormatRGBA8:
-            return textureFormat == GraphicsContext3D::RGBA;
-        case GraphicsContext3D::SourceFormatBGRA8:
-            return textureFormat == Extensions3D::BGRA_EXT;
+        case SourceFormatRGBA8:
+            return textureFormat == GL_RGBA;
+        case SourceFormatBGRA8:
+            return textureFormat == GL_BGRA_EXT;
         default:
             ASSERT_NOT_REACHED();
             return false;
         }
     }
 };
 
 } // namespace cc
 
 #endif