chrome: Use base::MessageLoop. (Part 2)

chrome/browser/ui/views/tabs/tab_drag_controller.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_TABS_TAB_DRAG_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_DRAG_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 36 matching lines @@
 // that the tabs should be moved out of the tab strip two possible things
 // can happen (this state is referred to as detached):
 // . If |detach_into_browser_| is true then a new Browser is created and
 //   RunMoveLoop() is invoked on the Widget to drag the browser around. This is
 //   the default on chromeos and can be enabled on windows with a flag.
 // . If |detach_into_browser_| is false a small representation of the active tab
 //   is created and that is dragged around. This mode does not run a nested
 //   message loop.
 class TabDragController : public content::WebContentsDelegate,
                           public content::NotificationObserver,
-                          public MessageLoopForUI::Observer,
+                          public base::MessageLoopForUI::Observer,
                           public views::WidgetObserver,
                           public TabStripModelObserver {
  public:
   enum DetachBehavior {
     DETACHABLE,
     NOT_DETACHABLE
   };
 
   // What should happen as the mouse is dragged within the tabstrip.
   enum MoveBehavior {
@@ skipping 543 matching lines @@
   // If non-null set to true from destructor.
   bool* destroyed_;
 
   // See description above getter.
   bool is_mutating_;
 
   DISALLOW_COPY_AND_ASSIGN(TabDragController);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_TAB_DRAG_CONTROLLER_H_