Parsing filesystem url before giving it to media player

content/common/media/media_player_messages.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.
 
 // IPC messages for android media player.
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 
 #include "base/time.h"
 #include "content/common/content_export.h"
+#include "googleurl/src/gurl.h"
 #include "ipc/ipc_message_macros.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 #define IPC_MESSAGE_START MediaPlayerMsgStart
 
 // Messages for notifying the render process of media playback status -------
 
 // Media buffering has updated.
 IPC_MESSAGE_ROUTED2(MediaPlayerMsg_MediaBufferingUpdate,
@@ skipping 55 matching lines @@
 // Destroy the media player object.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_DestroyMediaPlayer,
                     int /* player_id */)
 
 // Destroy all the players.
 IPC_MESSAGE_ROUTED0(MediaPlayerHostMsg_DestroyAllMediaPlayers)
 
 // Initialize a media player object with the given player_id.
 IPC_MESSAGE_ROUTED3(MediaPlayerHostMsg_MediaPlayerInitialize,
                     int /* player_id */,
-                    std::string /* url */,
-                    std::string /* first_party_for_cookies */)
+                    GURL /* url */,
+                    GURL /* first_party_for_cookies */)
 
 // Pause the player.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_MediaPlayerPause,
                     int /* player_id */)
 
 // Release player resources, but keep the object for future usage.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_MediaPlayerRelease,
                     int /* player_id */)
 
 // Perform a seek.
 IPC_MESSAGE_ROUTED2(MediaPlayerHostMsg_MediaPlayerSeek,
                     int /* player_id */,
                     base::TimeDelta /* time */)
 
 // Start the player for playback.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_MediaPlayerStart,
                     int /* player_id */)
 
 // Request the player to enter fullscreen.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_EnterFullscreen,
                     int /* player_id */)
 
 // Request the player to exit fullscreen.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_ExitFullscreen,
                     int /* player_id */)