Move Extension into extensions namespace

chrome/browser/extensions/extension_icon_manager.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_EXTENSIONS_EXTENSION_ICON_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_MANAGER_H_
 #pragma once
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/insets.h"
 
+namespace extensions {
 class Extension;
+}
 
 class ExtensionIconManager : public ImageLoadingTracker::Observer {
  public:
   ExtensionIconManager();
   virtual ~ExtensionIconManager();
 
   // Start loading the icon for the given extension.
-  void LoadIcon(const Extension* extension);
+  void LoadIcon(const extensions::Extension* extension);
 
   // This returns a bitmap of width/height kFaviconSize, loaded either from an
   // entry specified in the extension's 'icon' section of the manifest, or a
   // default extension icon.
   const SkBitmap& GetIcon(const std::string& extension_id);
 
   // Removes the extension's icon from memory.
   void RemoveIcon(const std::string& extension_id);
 
   // Implements the ImageLoadingTracker::Observer interface.
@@ skipping 28 matching lines @@
   // If true, we will desaturate the icons to make them monochromatic.
   bool monochrome_;
 
   // Specifies the amount of empty padding to place around the icon.
   gfx::Insets padding_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionIconManager);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_MANAGER_H_