Remove obviously unneeded forward declarations in chrome/browser/[abef]*/*.h.

chrome/browser/extensions/extension_popup_api.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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_EXTENSIONS_EXTENSION_POPUP_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_POPUP_API_H_
 #pragma once
 
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/common/notification_registrar.h"
 
-namespace gfx {
-class Point;
-}  // namespace gfx
-
 class Profile;
 class ExtensionPopup;
 
 // This extension function shows a pop-up extension view.  It is asynchronous
 // because the callback must be invoked only after the associated render
 // process/view has been created and fully initialized.
 class PopupShowFunction : public AsyncExtensionFunction,
                           public NotificationObserver {
  public:
   PopupShowFunction();
@@ skipping 20 matching lines @@
 // Event router class for events related to the chrome.popup.* set of APIs.
 class PopupEventRouter {
  public:
   static void OnPopupClosed(Profile* profile,
                             int routing_id);
  private:
   DISALLOW_COPY_AND_ASSIGN(PopupEventRouter);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_POPUP_API_H_