Add TRACE_EVENT macros to net.

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 <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/thread_task_runner_handle.h"
+#include "base/trace_event/trace_event.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "net/base/connection_type_histograms.h"
 #include "net/base/port_util.h"
 #include "net/cert/cert_verifier.h"
 #include "net/http/bidirectional_stream_impl.h"
 #include "net/http/http_basic_stream.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_proxy_client_socket.h"
 #include "net/http/http_proxy_client_socket_pool.h"
@@ skipping 561 matching lines @@
   // It is OK to dereference spdy_session_pool, because the
   // ClientSocketPoolManager will be destroyed in the same callback that
   // destroys the SpdySessionPool.
   return spdy_session_pool->FindAvailableSession(spdy_session_key, origin_url,
                                                  net_log)
              ? ERR_SPDY_SESSION_ALREADY_EXISTS
              : OK;
 }
 
 void HttpStreamFactoryImpl::Job::OnIOComplete(int result) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "HttpStreamFactoryImpl::Job::OnIOComplete");
   RunLoop(result);
 }
 
 int HttpStreamFactoryImpl::Job::RunLoop(int result) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "HttpStreamFactoryImpl::Job::RunLoop");
   result = DoLoop(result);
 
   if (result == ERR_IO_PENDING)
     return result;
 
   // If there was an error, we should have already resumed the |waiting_job_|,
   // if there was one.
   DCHECK(result == OK || waiting_job_ == NULL);
 
   if (IsPreconnecting()) {
@@ skipping 1124 matching lines @@
   return CheckAlternativeServiceValidityForOrigin(*spdy_session);
 }
 
 int HttpStreamFactoryImpl::Job::ValidSpdySessionPool::
     CreateAvailableSessionFromSocket(const SpdySessionKey& key,
                                      scoped_ptr<ClientSocketHandle> connection,
                                      const BoundNetLog& net_log,
                                      int certificate_error_code,
                                      bool is_secure,
                                      base::WeakPtr<SpdySession>* spdy_session) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "HttpStreamFactoryImpl::CreateAvailableSessionFromSocket");

[mmenke, 2016/04/04 16:45:49]

Think you should probably include the "Job::" in this string, even if you leave
out the ValidSpdySessionPool.

[ssid, 2016/04/05 00:50:12]

Done.

   *spdy_session = spdy_session_pool_->CreateAvailableSessionFromSocket(
       key, std::move(connection), net_log, certificate_error_code, is_secure);
   return CheckAlternativeServiceValidityForOrigin(*spdy_session);
 }
 
 int HttpStreamFactoryImpl::Job::ValidSpdySessionPool::
     CheckAlternativeServiceValidityForOrigin(
         base::WeakPtr<SpdySession> spdy_session) {
   // For an alternative Job, server_.host() might be different than
   // origin_url_.host(), therefore it needs to be verified that the former
@@ skipping 30 matching lines @@
   if (connection_->socket()) {
     ConnectionAttempts socket_attempts;
     connection_->socket()->GetConnectionAttempts(&socket_attempts);
     request_->AddConnectionAttempts(socket_attempts);
   } else {
     request_->AddConnectionAttempts(connection_->connection_attempts());
   }
 }
 
 }  // namespace net