Revert 119769 - Switch AudioDevice classes from SyncSocket to CancelableSyncSocket.

content/renderer/media/audio_input_device.h

Index: content/renderer/media/audio_input_device.h
===================================================================
--- content/renderer/media/audio_input_device.h	(revision 119920)
+++ content/renderer/media/audio_input_device.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -164,8 +164,6 @@
   void StartOnIOThread();
   void ShutDownOnIOThread(base::WaitableEvent* completion);
   void SetVolumeOnIOThread(double volume);
-  // Closes socket and joins with the audio thread.
-  void ShutDownAudioThread();
 
   void Send(IPC::Message* message);
 
@@ -211,7 +209,7 @@
   bool pending_device_ready_;
 
   base::SharedMemoryHandle shared_memory_handle_;
-  scoped_ptr<base::CancelableSyncSocket> audio_socket_;
+  base::SyncSocket::Handle socket_handle_;
   int memory_length_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(AudioInputDevice);