Make platform/graphics to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.h

Index: third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.h
diff --git a/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.h b/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.h
index a670d65bc08ab24726bcd5979cca39b32e78e022..96f20fc804fdce18aa61716ef82b607cc54623f1 100644
--- a/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.h
+++ b/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.h
@@ -35,6 +35,7 @@
 #include "public/platform/WebThread.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/skia/include/core/SkImage.h"
+#include "wtf/Allocator.h"
 #include "wtf/Deque.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/RefCounted.h"
@@ -127,6 +128,7 @@ private:
     friend class Canvas2DLayerBridgeTest;
 
     struct MailboxInfo {
+        DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
         WebExternalTextureMailbox m_mailbox;
         RefPtr<SkImage> m_image;
         RefPtr<Canvas2DLayerBridge> m_parentLayerBridge;