Make a global enum to differentiate impl & proxy.

ppapi/proxy/ppb_graphics_2d_proxy.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 "ppapi/proxy/ppb_graphics_2d_proxy.h"
 
 #include <string.h>  // For memset.
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 50 matching lines @@
   // In the plugin, this is the current callback set for Flushes. When the
   // pointer is non-NULL, we're waiting for a flush ACK.
   scoped_refptr<TrackedCallback> current_flush_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(Graphics2D);
 };
 
 Graphics2D::Graphics2D(const HostResource& host_resource,
                        const PP_Size& size,
                        PP_Bool is_always_opaque)
-    : Resource(host_resource),
+    : Resource(OBJECT_IS_PROXY, host_resource),
       size_(size),
       is_always_opaque_(is_always_opaque) {
 }
 
 Graphics2D::~Graphics2D() {
 }
 
 PPB_Graphics2D_API* Graphics2D::AsPPB_Graphics2D_API() {
   return this;
 }
@@ skipping 172 matching lines @@
 
 void PPB_Graphics2D_Proxy::SendFlushACKToPlugin(
     int32_t result,
     const HostResource& graphics_2d) {
   dispatcher()->Send(new PpapiMsg_PPBGraphics2D_FlushACK(kApiID, graphics_2d,
                                                          result));
 }
 
 }  // namespace proxy
 }  // namespace ppapi