Gather metrics classifying the cause of the TLS fallback.

net/http/http_stream_factory_impl_request.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_request.h"
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "net/http/http_stream_factory_impl_job.h"
@@ skipping 98 matching lines @@
   DCHECK(completed_);
 
   OnJobSucceeded(job);
   delegate_->OnWebSocketHandshakeStreamReady(
       used_ssl_config, used_proxy_info, stream);
 }
 
 void HttpStreamFactoryImpl::Request::OnStreamFailed(
     Job* job,
     int status,
-    const SSLConfig& used_ssl_config) {
+    const SSLConfig& used_ssl_config,
+    SSLFailureState ssl_failure_state) {
   DCHECK_NE(OK, status);
   DCHECK(job);
   if (!bound_job_.get()) {
     // Hey, we've got other jobs! Maybe one of them will succeed, let's just
     // ignore this failure.
     if (jobs_.size() > 1) {
       jobs_.erase(job);
       factory_->request_map_.erase(job);
       // Notify all the other jobs that this one failed.
       for (std::set<Job*>::iterator it = jobs_.begin(); it != jobs_.end(); ++it)
         (*it)->MarkOtherJobComplete(*job);
       delete job;
       return;
     } else {
       bound_job_.reset(job);
       jobs_.erase(job);
       DCHECK(jobs_.empty());
       factory_->request_map_.erase(job);
     }
   } else {
     DCHECK(jobs_.empty());
   }
-  delegate_->OnStreamFailed(status, used_ssl_config);
+  delegate_->OnStreamFailed(status, used_ssl_config, ssl_failure_state);
 }
 
 void HttpStreamFactoryImpl::Request::OnCertificateError(
     Job* job,
     int status,
     const SSLConfig& used_ssl_config,
     const SSLInfo& ssl_info) {
   DCHECK_NE(OK, status);
   if (!bound_job_.get())
     OrphanJobsExcept(job);
@@ skipping 221 matching lines @@
     }
     // We may have other jobs in |jobs_|. For example, if we start multiple jobs
     // for Alternate-Protocol.
     OrphanJobsExcept(job);
     return;
   }
   DCHECK(jobs_.empty());
 }
 
 }  // namespace net