Moves extension_icon_image and image_loader to extensions/browser

apps/app_window.h

 // Copyright 2014 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 APPS_APP_WINDOW_H_
 #define APPS_APP_WINDOW_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "chrome/browser/extensions/extension_icon_image.h"
 #include "chrome/browser/sessions/session_id.h"
 #include "components/web_modal/web_contents_modal_dialog_manager_delegate.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/console_message_level.h"
+#include "extensions/browser/extension_icon_image.h"
 #include "ui/base/ui_base_types.h"  // WindowShowState
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/rect.h"
 
 class GURL;
 class SkRegion;
 
 namespace base {
 class DictionaryValue;
 }
@@ skipping 529 matching lines @@
   // reinstated when the window exits fullscreen and moves away from the
   // taskbar.
   bool cached_always_on_top_;
 
   DISALLOW_COPY_AND_ASSIGN(AppWindow);
 };
 
 }  // namespace apps
 
 #endif  // APPS_APP_WINDOW_H_