Add a unified resource tracker shared between the proxy and the impl.

webkit/plugins/ppapi/ppb_input_event_impl.h

 // 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/shared_impl/input_event_impl.h"
 #include "webkit/plugins/ppapi/resource.h"
 
 namespace ppapi {
 struct InputEventData;
 }
 
 namespace webkit {
 namespace ppapi {
 
 class PPB_InputEvent_Impl : public Resource,
                             public ::ppapi::InputEventImpl {
  public:
   PPB_InputEvent_Impl(PluginInstance* instance,
                       const ::ppapi::InputEventData& data);
 
   static PP_Resource Create(PluginInstance* instance,
                             const ::ppapi::InputEventData& data);
 
-  // ResourceObjectBase overrides.
+  // Resource overrides.
   virtual ::ppapi::thunk::PPB_InputEvent_API* AsPPB_InputEvent_API() OVERRIDE;
 
  protected:
   // InputEventImpl implementation.
   virtual PP_Var StringToPPVar(const std::string& str) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PPB_InputEvent_Impl);
 };
 
 }  // namespace ppapi
 }  // namespace webkit