Revert of QUIC - track the time it takes for OnStreamReadyCallback() to

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>
 
@@ skipping 344 matching lines @@
   // working.
   return origin_url_.SchemeIs("https") ||
          proxy_info_.proxy_server().is_https() || IsSpdyAlternative();
 }
 
 void HttpStreamFactoryImpl::Job::OnStreamReadyCallback() {
   DCHECK(stream_.get());
   DCHECK_NE(job_type_, PRECONNECT);
   DCHECK(!delegate_->for_websockets());
 
-  UMA_HISTOGRAM_TIMES("Net.HttpStreamFactoryJob.StreamReadyCallbackTime",
-                      base::TimeTicks::Now() - job_stream_ready_start_time_);
-
   MaybeCopyConnectionAttemptsFromSocketOrHandle();
 
   delegate_->OnStreamReady(this, server_ssl_config_, proxy_info_);
   // |this| may be deleted after this call.
 }
 
 void HttpStreamFactoryImpl::Job::OnWebSocketHandshakeStreamReadyCallback() {
   DCHECK(websocket_stream_);
   DCHECK_NE(job_type_, PRECONNECT);
   DCHECK(delegate_->for_websockets());
@@ skipping 200 matching lines @@
               FROM_HERE, base::Bind(&Job::OnStreamFailedCallback,
                                     ptr_factory_.GetWeakPtr(), ERR_FAILED));
         } else {
           base::ThreadTaskRunnerHandle::Get()->PostTask(
               FROM_HERE,
               base::Bind(&Job::OnBidirectionalStreamImplReadyCallback,
                          ptr_factory_.GetWeakPtr()));
         }
       } else {
         DCHECK(stream_.get());
-        job_stream_ready_start_time_ = base::TimeTicks::Now();
         base::ThreadTaskRunnerHandle::Get()->PostTask(
             FROM_HERE,
             base::Bind(&Job::OnStreamReadyCallback, ptr_factory_.GetWeakPtr()));
       }
       return ERR_IO_PENDING;
 
     default:
       if (job_status_ != STATUS_BROKEN) {
         DCHECK_EQ(STATUS_RUNNING, job_status_);
         job_status_ = STATUS_FAILED;
@@ skipping 955 matching lines @@
 
   ConnectionAttempts socket_attempts = connection_->connection_attempts();
   if (connection_->socket()) {
     connection_->socket()->GetConnectionAttempts(&socket_attempts);
   }
 
   delegate_->AddConnectionAttemptsToRequest(this, socket_attempts);
 }
 
 }  // namespace net