chrome: Cleanup class/struct forward declarations

chrome/browser/ui/views/toolbar/browser_actions_container.h

 // Copyright 2013 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_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "chrome/browser/ui/toolbar/toolbar_actions_bar.h"
 #include "chrome/browser/ui/toolbar/toolbar_actions_bar_delegate.h"
 #include "chrome/browser/ui/views/toolbar/toolbar_action_view.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/animation/slide_animation.h"
 #include "ui/gfx/animation/tween.h"
 #include "ui/views/controls/resize_area_delegate.h"
 #include "ui/views/drag_controller.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget_observer.h"
 
-class ExtensionPopup;
-
-namespace extensions {
-class ActiveTabPermissionGranter;
-class Command;
-class Extension;
-}
-
 namespace views {
 class BubbleDialogDelegateView;
 class ResizeArea;
 }
 
 // The BrowserActionsContainer is a container view, responsible for drawing the
 // toolbar action icons (including extension icons and icons for component
 // toolbar actions). It comes in two flavors, a main container (when residing on
 // the toolbar) and an overflow container (that resides in the main application
 // menu, aka the Chrome menu).
@@ skipping 245 matching lines @@
   // is none.
   std::unique_ptr<DropPosition> drop_position_;
 
   // The extension bubble that is actively showing, if any.
   views::BubbleDialogDelegateView* active_bubble_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionsContainer);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_