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

chrome/browser/ui/gtk/extensions/extension_installed_bubble_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_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_GTK_H_
 #define CHROME_BROWSER_UI_GTK_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_GTK_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/gtk/bubble/bubble_gtk.h"
 #include "chrome/browser/ui/gtk/custom_button.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 class Browser;
-class BrowserWindowGtk;
 class Extension;
 class SkBitmap;
 
 // Provides feedback to the user upon successful installation of an
 // extension. Depending on the type of extension, the BubbleGtk will
 // point to:
 //    OMNIBOX_KEYWORD-> The omnibox.
 //    BROWSER_ACTION -> The browserAction icon in the toolbar.
 //    PAGE_ACTION    -> A preview of the page action icon in the location
 //                      bar which is shown while the BubbleGtk is shown.
@@ skipping 41 matching lines @@
   // BubbleDelegateGtk:
   virtual void BubbleClosing(BubbleGtk* bubble, bool closed_by_escape) OVERRIDE;
 
   // Calls Release() internally. Called internally via PostTask.
   void Close();
 
   static void OnButtonClick(GtkWidget* button,
                             ExtensionInstalledBubbleGtk* toolbar);
 
   const Extension* extension_;
-  Browser *browser_;
+  Browser* browser_;
   SkBitmap icon_;
   content::NotificationRegistrar registrar_;
   BubbleType type_;
 
   // The number of times to retry showing the bubble if the browser action
   // toolbar is animating.
   int animation_wait_retries_;
 
   // The 'x' that the user can press to hide the bubble shelf.
   scoped_ptr<CustomDrawButton> close_button_;
 
   BubbleGtk* bubble_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInstalledBubbleGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_GTK_H_