chrome: Cleanup class/struct forward declarations

chrome/browser/ui/cocoa/global_error_bubble_controller.h

 // Copyright (c) 2012 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_COCOA_GLOBAL_ERROR_BUBBLE_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_GLOBAL_ERROR_BUBBLE_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <memory>
 
 #include "base/memory/weak_ptr.h"
 #import "chrome/browser/ui/cocoa/base_bubble_controller.h"
 
 class Browser;
 class GlobalErrorWithStandardBubble;
 @class GTMUILocalizerAndLayoutTweaker;
 @class GTMWidthBasedTweaker;
-class Profile;
 
 namespace GlobalErrorBubbleControllerInternal {
 class Bridge;
 }
 
 // This is a bubble view shown from the app menu to display information
 // about a global error.
 @interface GlobalErrorBubbleController : BaseBubbleController {
  @private
   base::WeakPtr<GlobalErrorWithStandardBubble> error_;
@@ skipping 10 matching lines @@
 }
 
 - (IBAction)onAccept:(id)sender;
 - (IBAction)onCancel:(id)sender;
 
 - (void)close;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_GLOBAL_ERROR_BUBBLE_CONTROLLER_H_