[WebSocket] Incoming close frame should not overtake data frames

mojo/services/network/web_socket_impl.cc

 // Copyright 2014 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 "mojo/services/network/web_socket_impl.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 202 matching lines @@
                          uint32_t num_bytes) {
   DCHECK(channel_);
   read_queue_->Read(num_bytes,
                     base::Bind(&WebSocketImpl::DidReadFromSendStream,
                                base::Unretained(this),
                                fin, type, num_bytes));
 }
 
 void WebSocketImpl::FlowControl(int64_t quota) {
   DCHECK(channel_);
-  channel_->SendFlowControl(quota);
+  ignore_result(channel_->SendFlowControl(quota));
 }
 
 void WebSocketImpl::Close(uint16_t code, const String& reason) {
   DCHECK(channel_);
-  channel_->StartClosingHandshake(code, reason);
+  ignore_result(channel_->StartClosingHandshake(code, reason));
 }
 
 void WebSocketImpl::DidReadFromSendStream(bool fin,
                                           WebSocket::MessageType type,
                                           uint32_t num_bytes,
                                           const char* data) {
   std::vector<char> buffer(num_bytes);
   memcpy(&buffer[0], data, num_bytes);
   DCHECK(channel_);
   channel_->SendFrame(
       fin, ConvertTo<net::WebSocketFrameHeader::OpCode>(type), buffer);
 }
 
 }  // namespace mojo