Cleanup: Remove unneeded forward declarations from chrome/browser/ui/webui.

chrome/browser/ui/webui/extension_icon_source.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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_EXTENSION_ICON_SOURCE_H_
 #define CHROME_BROWSER_UI_WEBUI_EXTENSION_ICON_SOURCE_H_
 #pragma once
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "chrome/browser/favicon/favicon_service.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
 #include "chrome/common/extensions/extension.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 class ExtensionIconSet;
 class Profile;
-class RefCountedMemory;
-
-namespace gfx {
-class Size;
-}
 
 // ExtensionIconSource serves extension icons through network level chrome:
 // requests. Icons can be retrieved for any installed extension or app.
 //
 // The format for requesting an icon is as follows:
 //   chrome://extension-icon/<extension_id>/<icon_size>/<match_type>?[options]
 //
 //   Parameters (<> required, [] optional):
 //    <extension_id>  = the id of the extension
 //    <icon_size>     = the size of the icon, as the integer value of the
@@ skipping 133 matching lines @@
   scoped_ptr<SkBitmap> default_app_data_;
 
   scoped_ptr<SkBitmap> default_extension_data_;
 
   CancelableRequestConsumerT<int, 0> cancelable_consumer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionIconSource);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_EXTENSION_ICON_SOURCE_H_