Cleanup: Remove unneeded forward declarations from chrome/browser/ui/gtk and chrome/browser/ui/co...

chrome/browser/ui/gtk/bookmarks/bookmark_bar_gtk.h

 // Copyright (c) 2011 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_BOOKMARKS_BOOKMARK_BAR_GTK_H_
 #define CHROME_BROWSER_UI_GTK_BOOKMARKS_BOOKMARK_BAR_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
@@ skipping 15 matching lines @@
 #include "ui/base/animation/animation_delegate.h"
 #include "ui/base/animation/slide_animation.h"
 #include "ui/base/gtk/gtk_signal.h"
 #include "ui/base/gtk/owned_widget_gtk.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/size.h"
 
 class BookmarkMenuController;
 class Browser;
 class BrowserWindowGtk;
-class CustomContainerButton;
 class GtkThemeService;
 class MenuGtk;
 class PageNavigator;
 class TabstripOriginProvider;
 
 class BookmarkBarGtk : public ui::AnimationDelegate,
                        public BookmarkModelObserver,
                        public MenuBarHelper::Delegate,
                        public content::NotificationObserver,
                        public BookmarkBarInstructionsGtk::Delegate,
@@ skipping 356 matching lines @@
 
   BookmarkBar::State bookmark_bar_state_;
 
   // Maximum height of the bookmark bar.
   int max_height_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkBarGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_BOOKMARKS_BOOKMARK_BAR_GTK_H_