Experimental app list banner now appears on top of launcher pages.

ui/app_list/views/app_list_view.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 UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_
 #define UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "ui/app_list/app_list_export.h"
 #include "ui/app_list/app_list_view_delegate_observer.h"
 #include "ui/app_list/speech_ui_model_observer.h"
 #include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/widget/widget.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace test {
 class AppListViewTestApi;
 }
 
+namespace views {
+class ImageView;
+}
+
 namespace app_list {
 class ApplicationDragAndDropHost;
 class AppListMainView;
 class AppListModel;
 class AppListViewDelegate;
 class AppListViewObserver;
 class HideViewAnimationObserver;
 class PaginationModel;
 class SpeechView;
 
@@ skipping 115 matching lines @@
 
   // Overridden from SpeechUIModelObserver:
   virtual void OnSpeechRecognitionStateChanged(
       SpeechRecognitionState new_state) OVERRIDE;
 
   scoped_ptr<AppListViewDelegate> delegate_;
 
   AppListMainView* app_list_main_view_;
   SpeechView* speech_view_;
 
+  // The red "experimental" banner for the experimental app list.
+  views::ImageView* experimental_banner_view_;
+
   // A semi-transparent white overlay that covers the app list while dialogs are
   // open.
   views::View* overlay_view_;
 
   ObserverList<AppListViewObserver> observers_;
   scoped_ptr<HideViewAnimationObserver> animation_observer_;
 
   // For UMA and testing. If non-null, triggered when the app list is painted.
   base::Closure next_paint_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_