SyncSocket Transit Descriptor - refactoring

content/common/media/audio_messages.h

Index: content/common/media/audio_messages.h
diff --git a/content/common/media/audio_messages.h b/content/common/media/audio_messages.h
index 3b9bc36ce6ee3740de68cc05c07f5d0d552452e8..7eaa850e5108a1284dc583332999ec23edc306e4 100644
--- a/content/common/media/audio_messages.h
+++ b/content/common/media/audio_messages.h
@@ -39,38 +39,21 @@ IPC_STRUCT_END()
 // buffer it shares with the browser process. It is also given a SyncSocket that
 // it uses to communicate with the browser process about the state of the
 // buffered audio data.
-#if defined(OS_WIN)
 IPC_MESSAGE_CONTROL4(AudioMsg_NotifyStreamCreated,
                      int /* stream id */,
                      base::SharedMemoryHandle /* handle */,
-                     base::SyncSocket::Handle /* socket handle */,
+                     base::SyncSocket::TransitDescriptor /* socket handle */,
                      uint32 /* length */)
-#else
-IPC_MESSAGE_CONTROL4(AudioMsg_NotifyStreamCreated,
-                     int /* stream id */,
-                     base::SharedMemoryHandle /* handle */,
-                     base::FileDescriptor /* socket handle */,
-                     uint32 /* length */)
-#endif
 
 // Tell the renderer process that an audio input stream has been created.
 // The renderer process would be given a SyncSocket that it should read
 // from from then on. It is also given number of segments in shared memory.
-#if defined(OS_WIN)
-IPC_MESSAGE_CONTROL5(AudioInputMsg_NotifyStreamCreated,
-                     int /* stream id */,
-                     base::SharedMemoryHandle /* handle */,
-                     base::SyncSocket::Handle /* socket handle */,
-                     uint32 /* length */,
-                     uint32 /* segment count */)
-#else
 IPC_MESSAGE_CONTROL5(AudioInputMsg_NotifyStreamCreated,
                      int /* stream id */,
                      base::SharedMemoryHandle /* handle */,
-                     base::FileDescriptor /* socket handle */,
+                     base::SyncSocket::TransitDescriptor /* socket handle */,
                      uint32 /* length */,
                      uint32 /* segment count */)
-#endif
 
 // Notification message sent from AudioRendererHost to renderer after an output
 // device change has occurred.