Update from chromium https://crrev.com/301315

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 1412 matching lines @@
 bool HttpStreamFactoryImpl::Job::IsPreconnecting() const {
   DCHECK_GE(num_streams_, 0);
   return num_streams_ > 0;
 }
 
 bool HttpStreamFactoryImpl::Job::IsOrphaned() const {
   return !IsPreconnecting() && !request_;
 }
 
 void HttpStreamFactoryImpl::Job::ReportJobSuccededForRequest() {
-  net::AlternateProtocolExperiment alternate_protocol_experiment =
-      ALTERNATE_PROTOCOL_NOT_PART_OF_EXPERIMENT;
-  base::WeakPtr<HttpServerProperties> http_server_properties =
-      session_->http_server_properties();
-  if (http_server_properties) {
-    alternate_protocol_experiment =
-        http_server_properties->GetAlternateProtocolExperiment();
-  }
   if (using_existing_quic_session_) {
     // If an existing session was used, then no TCP connection was
     // started.
-    HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_NO_RACE,
-                                    alternate_protocol_experiment);
+    HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_NO_RACE);
   } else if (original_url_) {
     // This job was the alternate protocol job, and hence won the race.
-    HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_WON_RACE,
-                                    alternate_protocol_experiment);
+    HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_WON_RACE);
   } else {
     // This job was the normal job, and hence the alternate protocol job lost
     // the race.
-    HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_LOST_RACE,
-                                    alternate_protocol_experiment);
+    HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_LOST_RACE);
   }
 }
 
 void HttpStreamFactoryImpl::Job::MarkOtherJobComplete(const Job& job) {
   DCHECK_EQ(STATUS_RUNNING, other_job_status_);
   other_job_status_ = job.job_status_;
   MaybeMarkAlternateProtocolBroken();
 }
 
 void HttpStreamFactoryImpl::Job::MaybeMarkAlternateProtocolBroken() {
@@ skipping 13 matching lines @@
 
   if (job_status_ == STATUS_SUCCEEDED && other_job_status_ == STATUS_BROKEN) {
     HistogramBrokenAlternateProtocolLocation(
         BROKEN_ALTERNATE_PROTOCOL_LOCATION_HTTP_STREAM_FACTORY_IMPL_JOB_MAIN);
     session_->http_server_properties()->SetBrokenAlternateProtocol(
         HostPortPair::FromURL(request_info_.url));
   }
 }
 
 }  // namespace net