Add abstractions that let embedders drive tests of WebContents.

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"
 #include "base/compiler_specific.h"
 #include "chrome/browser/infobars/infobar_delegate.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/media_stream_request.h"
 
 class MessageLoop;
-class TabContents;
 class TabContentsWrapper;
 
 // This class configures an infobar shown when a page requests access to a
 // user's microphone and/or video camera.  The user is shown a message asking
 // which audio and/or video devices he wishes to use with the current page, and
 // buttons to give access to the selected devices to the page, or to deny access
 // to them.
 class MediaStreamInfoBarDelegate : public InfoBarDelegate {
  public:
   MediaStreamInfoBarDelegate(
@@ skipping 45 matching lines @@
   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_