Race preconnects to HTTP2 proxies that support alternate proxies

net/http/http_stream_factory_impl_job.h

 // 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.
 
 #ifndef NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 
 #include <memory>
 #include <utility>
 
@@ skipping 197 matching lines @@
   // Tells |this| that |delegate_| has determined it still needs to continue
   // connecting.
   virtual void Resume();
 
   // Called to detach |this| Job. May resume the other Job, will disconnect
   // the socket for |this| Job, and notify |delegate| upon completion.
   void Orphan();
 
   void SetPriority(RequestPriority priority);
 
+  // Sets |num_streams_| to 1 for preconnect jobs.
+  void RestrictNumStreamsToOne();
+
   RequestPriority priority() const { return priority_; }
   bool was_alpn_negotiated() const;
   NextProto negotiated_protocol() const;
   bool using_spdy() const;
   const NetLogWithSource& net_log() const { return net_log_; }
   HttpStreamRequest::StreamType stream_type() const { return stream_type_; }
 
   std::unique_ptr<HttpStream> ReleaseStream() { return std::move(stream_); }
 
   void SetStream(HttpStream* http_stream) { stream_.reset(http_stream); }
@@ skipping 298 matching lines @@
       const SSLConfig& server_ssl_config,
       const SSLConfig& proxy_ssl_config,
       HostPortPair destination,
       GURL origin_url,
       NetLog* net_log) = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_