Implementation of WebCompositorSupport when use_libcc_for_compositor=1

webkit/glue/webkitplatformsupport_impl.h

Index: webkit/glue/webkitplatformsupport_impl.h
diff --git a/webkit/glue/webkitplatformsupport_impl.h b/webkit/glue/webkitplatformsupport_impl.h
index 59dc97eeacddeebf97c6d6b3817dc2ff879846c2..aa8eed6095d53d419c18547fd3546e8f0b6aa48e 100644
--- a/webkit/glue/webkitplatformsupport_impl.h
+++ b/webkit/glue/webkitplatformsupport_impl.h
@@ -28,6 +28,7 @@
 class MessageLoop;
 
 namespace webkit {
+class WebCompositorSupportImpl;
 struct WebPluginInfo;
 }
 
@@ -119,6 +120,7 @@ class WEBKIT_GLUE_EXPORT WebKitPlatformSupportImpl :
   virtual void callOnMainThread(void (*func)(void*), void* context);
   virtual WebKit::WebThread* createThread(const char* name);
   virtual WebKit::WebThread* currentThread();
+  virtual WebKit::WebCompositorSupport* compositorSupport();
 
 
   // Embedder functions. The following are not implemented by the glue layer and
@@ -171,6 +173,7 @@ class WEBKIT_GLUE_EXPORT WebKitPlatformSupportImpl :
   int shared_timer_suspended_;  // counter
   WebThemeEngineImpl theme_engine_;
   base::ThreadLocalStorage::Slot current_thread_slot_;
+  scoped_ptr<webkit::WebCompositorSupportImpl> compositor_support_;
 };
 
 }  // namespace webkit_glue