Make a global enum to differentiate impl & proxy.

webkit/plugins/ppapi/ppb_video_layer_impl.cc

 // Copyright (c) 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.
 
 #include "webkit/plugins/ppapi/ppb_video_layer_impl.h"
 
 #include "base/logging.h"
 #include "webkit/plugins/ppapi/common.h"
 #include "webkit/plugins/ppapi/ppb_video_layer_software.h"
 
 using ppapi::thunk::PPB_VideoLayer_API;
 
 namespace webkit {
 namespace ppapi {
 
 PPB_VideoLayer_Impl::PPB_VideoLayer_Impl(PP_Instance instance)
-    : Resource(instance) {
+    : Resource(::ppapi::OBJECT_IS_IMPL, instance) {
 }
 
 PPB_VideoLayer_Impl::~PPB_VideoLayer_Impl() {
 }
 
 // static
 PP_Resource PPB_VideoLayer_Impl::Create(PP_Instance instance,
                                         PP_VideoLayerMode_Dev mode) {
   if (mode != PP_VIDEOLAYERMODE_SOFTWARE)
     return 0;
   return (new PPB_VideoLayer_Software(instance))->GetReference();
 }
 
 PPB_VideoLayer_API* PPB_VideoLayer_Impl::AsPPB_VideoLayer_API() {
   return this;
 }
 
 }  // namespace ppapi
 }  // namespace webkit