Pass Chrome user agent string to Android media player

media/base/android/media_resource_getter.h

 // Copyright (c) 2013 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 MEDIA_BASE_ANDROID_MEDIA_RESOURCE_GETTER_H_
 #define MEDIA_BASE_ANDROID_MEDIA_RESOURCE_GETTER_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 22 matching lines @@
   // Method for getting the platform path from a file system URL.
   virtual void GetPlatformPathFromFileSystemURL(
       const GURL& url,
       const GetPlatformPathCB& callback) = 0;
 
   // Extract the metadata from a media URL. Once completed, the provided
   // callback function will be run.
   virtual void ExtractMediaMetadata(
       const std::string& url,
       const std::string& cookies,
+      const std::string& user_agent,
       const ExtractMediaMetadataCB& callback) = 0;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_RESOURCE_GETTER_H_