Implement support for a cancelable SyncSocket.

content/browser/renderer_host/media/audio_sync_reader.cc

Index: content/browser/renderer_host/media/audio_sync_reader.cc
diff --git a/content/browser/renderer_host/media/audio_sync_reader.cc b/content/browser/renderer_host/media/audio_sync_reader.cc
index 7e21cf18e4b35667afa192e1abc310f2682d92b8..d552ba5de715071423bdf0a60b6d77b9e905d2c6 100644
--- a/content/browser/renderer_host/media/audio_sync_reader.cc
+++ b/content/browser/renderer_host/media/audio_sync_reader.cc
@@ -92,13 +92,9 @@ void AudioSyncReader::Close() {
 }
 
 bool AudioSyncReader::Init() {
-  base::SyncSocket* sockets[2] = {0};
-  if (base::SyncSocket::CreatePair(sockets)) {
-    socket_.reset(sockets[0]);
-    foreign_socket_.reset(sockets[1]);
-    return true;
-  }
-  return false;
+  socket_.reset(new base::SyncSocket());
+  foreign_socket_.reset(new base::SyncSocket());
+  return base::SyncSocket::CreatePair(socket_.get(), foreign_socket_.get());
 }
 
 #if defined(OS_WIN)