ppapi: Remove use of ALLOW_THIS_IN_INITIALIZER_LIST.

ppapi/proxy/ppb_image_data_proxy.cc

 // Copyright (c) 2012 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_image_data_proxy.h"
 
 #include <string.h>  // For memcpy
 
 #include <map>
 #include <vector>
@@ skipping 199 matching lines @@
   // Go to the next location, wrapping around to get LRU.
   next_insertion_point_++;
   if (next_insertion_point_ >= kCacheSize)
     next_insertion_point_ = 0;
 }
 
 // ImageDataCache --------------------------------------------------------------
 
 class ImageDataCache {
  public:
-  ImageDataCache() : weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {}
+  ImageDataCache() : weak_factory_(this) {}
   ~ImageDataCache() {}
 
   static ImageDataCache* GetInstance();
 
   // Retrieves an image data from the cache of the specified size and format if
   // one exists. If one doesn't exist, this will return a null refptr.
   scoped_refptr<ImageData> Get(PP_Instance instance,
                                int width, int height,
                                PP_ImageDataFormat format);
 
@@ skipping 397 matching lines @@
   // still cached in our process, the proxy still holds a reference so we can
   // remove the one the renderer just sent is. If the proxy no longer holds a
   // reference, we released everything and we should also release the one the
   // renderer just sent us.
   dispatcher()->Send(new PpapiHostMsg_PPBCore_ReleaseResource(
       API_ID_PPB_CORE, old_image_data));
 }
 
 }  // namespace proxy
 }  // namespace ppapi