Refactor media stream infobar delegate code and also fix a typo

chrome/browser/ui/media_stream_infobar_delegate.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_MEDIA_STREAM_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_UI_MEDIA_STREAM_INFOBAR_DELEGATE_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 44 matching lines @@
   // and adds it to the |devices| array.
   void AddDeviceWithId(content::MediaStreamDeviceType type,
                        const std::string& id,
                        content::MediaStreamDevices* devices);
 
   // InfoBarDelegate:
   virtual InfoBar* CreateInfoBar(InfoBarTabHelper* owner) OVERRIDE;
   virtual void InfoBarDismissed() OVERRIDE;
   virtual gfx::Image* GetIcon() const OVERRIDE;
   virtual Type GetInfoBarType() const OVERRIDE;
-  virtual MediaStreamInfoBarDelegate* AsMediaStreamInfobarDelegate() OVERRIDE;
+  virtual MediaStreamInfoBarDelegate* AsMediaStreamInfoBarDelegate() OVERRIDE;
 
   // The original request for access to devices.
   const content::MediaStreamRequest* request_;
 
   // The callback that needs to be Run to notify WebRTC of whether access to
   // audio/video devices was granted or not.
   content::MediaResponseCallback callback_;
 
   // Whether the request is for audio and/or video devices.
   bool has_audio_;
   bool has_video_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_MEDIA_STREAM_INFOBAR_DELEGATE_H_