Update ICE protocol to handle closed channel

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 67 matching lines @@
     return;
 
   *read_succeeded = true;
 
   if (result > 0) {
     OnDataReceived(read_buffer_.get(), result);
     *read_succeeded = true;
   } else if (result == net::ERR_IO_PENDING) {
     read_pending_ = true;
   } else {
-    DCHECK_LT(result, 0);
-
     // Stop reading after any error.
     closed_ = true;
     *read_succeeded = false;
 
     LOG(ERROR) << "Read() returned error " << result;
     read_failed_callback_.Run(result);
   }
 }
 
 void MessageReader::OnDataReceived(net::IOBuffer* data, int data_size) {
@@ skipping 14 matching lines @@
 }
 
 void MessageReader::RunCallback(std::unique_ptr<CompoundBuffer> message) {
   if (!message_received_callback_.is_null()) {
     message_received_callback_.Run(std::move(message));
   }
 }
 
 }  // namespace protocol
 }  // namespace remoting