Move extension_icon_set.{h,cc} to //extensions

chrome/browser/extensions/extension_icon_image.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_IMAGE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_IMAGE_H_
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
-#include "chrome/common/extensions/extension_icon_set.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "extensions/common/extension_icon_set.h"
 #include "ui/base/layout.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 class Extension;
 }
@@ skipping 81 matching lines @@
   content::NotificationRegistrar registrar_;
 
   base::WeakPtrFactory<IconImage> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(IconImage);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_IMAGE_H_