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

chrome/browser/ui/gtk/tabs/tab_strip_gtk.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_GTK_TABS_TAB_STRIP_GTK_H_
 #define CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_
 
 #include <gtk/gtk.h>
 #include <vector>
 
@@ skipping 16 matching lines @@
 class CustomDrawButton;
 class DraggedTabControllerGtk;
 class GtkThemeService;
 
 namespace gfx {
 class Image;
 }
 
 class TabStripGtk : public TabStripModelObserver,
                     public TabGtk::TabDelegate,
-                    public MessageLoopForUI::Observer,
+                    public base::MessageLoopForUI::Observer,
                     public content::NotificationObserver,
                     public TabstripOriginProvider,
                     public ViewIDUtil::Delegate {
  public:
   class TabAnimation;
 
   TabStripGtk(TabStripModel* model, BrowserWindowGtk* window);
   virtual ~TabStripGtk();
 
   // Initialize and load the TabStrip into a container.
@@ skipping 446 matching lines @@
 
   // Helper for performing tab selection as a result of dragging over a tab.
   HoverTabSelector hover_tab_selector_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(TabStripGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_