chrome: Cleanup class/struct forward declarations

chrome/browser/ui/exclusive_access/exclusive_access_controller_base.h

 // Copyright (c) 2015 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_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_CONTROLLER_BASE_H_
 #define CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_CONTROLLER_BASE_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/ui/exclusive_access/exclusive_access_bubble_type.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class ExclusiveAccessManager;
 class GURL;
-class Profile;
 
 namespace content {
 class WebContents;
 }
 
 // The base class for the different exclusive access controllers like the
 // FullscreenController, and MouseLockController which controls lifetime for
 // which the resource (screen/mouse) is held exclusively.
 class ExclusiveAccessControllerBase : public content::NotificationObserver {
  public:
@@ skipping 58 matching lines @@
 
   content::WebContents* tab_with_exclusive_access_ = nullptr;
 
   // The number of bubble re-shows for the current session (reset upon exiting).
   int bubble_reshow_count_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(ExclusiveAccessControllerBase);
 };
 
 #endif  // CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_CONTROLLER_BASE_H_