Add NetLog events for HttpStreamFactoryImpl::Job throttle logic

net/http/http_stream_factory_impl_job.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/http/http_stream_factory_impl_job.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 786 matching lines @@
     return OK;
   base::Closure callback =
       base::Bind(&HttpStreamFactoryImpl::Job::ResumeInitConnection,
                  ptr_factory_.GetWeakPtr());
   if (session_->spdy_session_pool()->StartRequest(spdy_session_key_,
                                                   callback)) {
     return OK;
   }
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, callback, base::TimeDelta::FromMilliseconds(kHTTP2ThrottleMs));
+  net_log_.AddEvent(NetLogEventType::HTTP_STREAM_JOB_THROTTLED);
   return ERR_IO_PENDING;
 }
 
 void HttpStreamFactoryImpl::Job::ResumeInitConnection() {
   if (init_connection_already_resumed_)
     return;
+  net_log_.AddEvent(NetLogEventType::HTTP_STREAM_JOB_RESUME_INIT_CONNECTION);
   // TODO(xunjieli): Change this to a DCHECK once crbug.com/718576 is stable.
   CHECK_EQ(next_state_, STATE_INIT_CONNECTION);
   init_connection_already_resumed_ = true;
   OnIOComplete(OK);
 }
 
 int HttpStreamFactoryImpl::Job::DoInitConnection() {
   net_log_.BeginEvent(NetLogEventType::HTTP_STREAM_JOB_INIT_CONNECTION);
   int result = DoInitConnectionImpl();
   if (result != ERR_SPDY_SESSION_ALREADY_EXISTS)
@@ skipping 673 matching lines @@
     bool enable_ip_based_pooling,
     NetLog* net_log) {
   return base::MakeUnique<HttpStreamFactoryImpl::Job>(
       delegate, job_type, session, request_info, priority, proxy_info,
       server_ssl_config, proxy_ssl_config, destination, origin_url,
       kProtoUnknown, alternative_proxy_server, enable_ip_based_pooling,
       net_log);
 }
 
 }  // namespace net