Add a QuicHttpStream class.

net/quic/quic_connection_helper.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/quic/quic_connection_helper.h"
 
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/task_runner.h"
 #include "base/time.h"
@@ skipping 48 matching lines @@
     QuicTime::Delta delay) {
   // TODO(rch): Coalesce these alarms.
   task_runner_->PostDelayedTask(
       FROM_HERE,
       base::Bind(&QuicConnectionHelper::OnResendAlarm,
                  weak_factory_.GetWeakPtr(), sequence_number),
       base::TimeDelta::FromMicroseconds(delay.ToMicroseconds()));
 }
 
 void QuicConnectionHelper::SetSendAlarm(QuicTime::Delta delay) {
-  DCHECK(!send_alarm_registered_);
   send_alarm_registered_ = true;
   task_runner_->PostDelayedTask(
       FROM_HERE,
       base::Bind(&QuicConnectionHelper::OnSendAlarm,
                  weak_factory_.GetWeakPtr()),
       base::TimeDelta::FromMicroseconds(delay.ToMicroseconds()));
 }
 
 void QuicConnectionHelper::SetTimeoutAlarm(QuicTime::Delta delay) {
   DCHECK(!timeout_alarm_registered_);
@@ skipping 29 matching lines @@
   timeout_alarm_registered_ = false;
   connection_->CheckForTimeout();
 }
 
 void QuicConnectionHelper::OnWriteComplete(int result) {
   // TODO(rch): Inform the connection about the result.
   connection_->OnCanWrite();
 }
 
 }  // namespace net