Add support for dynamic channels in WebrtcTransport.

remoting/protocol/message_reader.cc

 // 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.
 
 #include "remoting/protocol/message_reader.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 96 matching lines @@
     if (!buffer)
       break;
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(&MessageReader::RunCallback, weak_factory_.GetWeakPtr(),
                    base::Passed(base::WrapUnique(buffer))));
   }
 }
 
 void MessageReader::RunCallback(std::unique_ptr<CompoundBuffer> message) {
-  if (!message_received_callback_.is_null())
+  if (!message_received_callback_.is_null()) {
     message_received_callback_.Run(std::move(message));
+  }
 }
 
 }  // namespace protocol
 }  // namespace remoting