Even more virtual method deinlining.

ppapi/proxy/image_data.h

 // Copyright (c) 2010 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.
 
 #ifndef PPAPI_PROXY_IMAGE_DATA_H_
 #define PPAPI_PROXY_IMAGE_DATA_H_
 
 #include "base/shared_memory.h"
 #include "ppapi/c/ppb_image_data.h"
 #include "ppapi/proxy/plugin_resource.h"
 #include "ppapi/proxy/serialized_structs.h"
 
 namespace pp {
 namespace proxy {
 
 class ImageData : public PluginResource {
  public:
   ImageData(const PP_ImageDataDesc& desc, ImageHandle handle);
   virtual ~ImageData();
 
   // Resource overrides.
-  virtual ImageData* AsImageData() { return this; }
+  virtual ImageData* AsImageData();
 
   void* Map();
   void Unmap();
 
   const PP_ImageDataDesc& desc() const { return desc_; }
 
   static const ImageHandle NullHandle;
   static ImageHandle HandleFromInt(int32_t i);
 
  private:
   PP_ImageDataDesc desc_;
   ImageHandle handle_;
 
   void* mapped_data_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageData);
 };
 
 }  // namespace proxy
 }  // namespace pp
 
 #endif  // PPAPI_PROXY_IMAGE_DATA_H_