Cleanup: Remove unneeded forward declarations from chrome/browser/extensions.

chrome/browser/extensions/extension_infobar_delegate.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_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Browser;
 class Extension;
 class ExtensionHost;
 class GURL;
-class Profile;
 
 // The InfobarDelegate for creating and managing state for the ExtensionInfobar
 // plus monitor when the extension goes away.
 class ExtensionInfoBarDelegate : public InfoBarDelegate,
                                  public content::NotificationObserver {
  public:
   // The observer for when the delegate dies.
   class DelegateObserver {
    public:
     virtual void OnDelegateDeleted() = 0;
@@ skipping 49 matching lines @@
   int height_;
 
   // Whether we are currently animating to close. This is used to ignore
   // ExtensionView::PreferredSizeChanged notifications.
   bool closing_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_