Update from https://crrev.com/307330

net/tools/quic/quic_client.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 "net/tools/quic/quic_client.h"
 
 #include <errno.h>
 #include <netinet/in.h>
 #include <string.h>
 #include <sys/epoll.h>
@@ skipping 217 matching lines @@
   initialized_ = false;
 }
 
 void QuicClient::SendRequestsAndWaitForResponse(
     const base::CommandLine::StringVector& args) {
   for (size_t i = 0; i < args.size(); ++i) {
     BalsaHeaders headers;
     headers.SetRequestFirstlineFromStringPieces("GET", args[i], "HTTP/1.1");
     QuicSpdyClientStream* stream = CreateReliableClientStream();
     DCHECK(stream != nullptr);
+    if (stream == nullptr) {
+      LOG(ERROR) << "stream creation failed!";
+      break;
+    }
     stream->SendRequest(headers, "", true);
     stream->set_visitor(this);
   }
 
   while (WaitForEvents()) {}
 }
 
 QuicSpdyClientStream* QuicClient::CreateReliableClientStream() {
   if (!connected()) {
     return nullptr;
@@ skipping 62 matching lines @@
            i->second.as_string().c_str());
   }
   printf("%s\n", client_stream->data().c_str());
 }
 
 bool QuicClient::connected() const {
   return session_.get() && session_->connection() &&
       session_->connection()->connected();
 }
 
+bool QuicClient::goaway_received() const {
+  return session_ != nullptr && session_->goaway_received();
+}
+
 QuicConnectionId QuicClient::GenerateConnectionId() {
   return QuicRandom::GetInstance()->RandUint64();
 }
 
 QuicEpollConnectionHelper* QuicClient::CreateQuicConnectionHelper() {
   return new QuicEpollConnectionHelper(epoll_server_);
 }
 
 QuicPacketWriter* QuicClient::CreateQuicPacketWriter() {
   return new QuicDefaultPacketWriter(fd_);
@@ skipping 26 matching lines @@
   QuicEncryptedPacket packet(buf, bytes_read, false);
 
   IPEndPoint client_address(client_ip, client_address_.port());
   session_->connection()->ProcessUdpPacket(
       client_address, server_address, packet);
   return true;
 }
 
 }  // namespace tools
 }  // namespace net