Move command handling and updating off Browser and onto a helper object.

chrome/browser/ui/views/location_bar/chrome_to_mobile_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 CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CHROME_TO_MOBILE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CHROME_TO_MOBILE_VIEW_H_
 #pragma once
 
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/ui/views/location_bar/touchable_location_bar_view.h"
 #include "ui/views/controls/image_view.h"
 
 class LocationBarView;
 
 namespace views {
 class KeyEvent;
 class MouseEvent;
 }
 
 // A Page Action image view for the Chrome To Mobile bubble.
 class ChromeToMobileView : public views::ImageView,
-                           public CommandUpdater::CommandObserver,
+                           public CommandObserver,
                            public TouchableLocationBarView {
  public:
   ChromeToMobileView(LocationBarView* location_bar_view,
                      CommandUpdater* command_updater);
   virtual ~ChromeToMobileView();
 
-  // CommandUpdater::CommandObserver overrides:
+  // CommandObserver overrides:
   virtual void EnabledStateChangedForCommand(int id, bool enabled) OVERRIDE;
 
   // TouchableLocationBarView.
   virtual int GetBuiltInHorizontalPadding() const OVERRIDE;
 
  private:
   // views::ImageView overrides:
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
   virtual bool GetTooltipText(const gfx::Point& p,
                               string16* tooltip) const OVERRIDE;
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
   virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
 
   // The LocationBarView hosting this view.
   LocationBarView* location_bar_view_;
 
   // The CommandUpdater for the Browser object that owns the location bar.
   CommandUpdater* command_updater_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ChromeToMobileView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CHROME_TO_MOBILE_VIEW_H_