Ensure pipelined requests are sent in the same order they're queued.

net/http/http_stream_factory_impl.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_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
 
 #include <map>
 #include <set>
+#include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_log.h"
 #include "net/http/http_pipelined_host_pool.h"
 #include "net/http/http_stream_factory.h"
 #include "net/proxy/proxy_server.h"
 #include "net/socket/ssl_client_socket.h"
 
 namespace net {
@@ skipping 27 matching lines @@
 
   // HttpPipelinedHostPool::Delegate interface
   virtual void OnHttpPipelinedHostHasAdditionalCapacity(
       HttpPipelinedHost* host) OVERRIDE;
 
  private:
   class Request;
   class Job;
 
   typedef std::set<Request*> RequestSet;
+  typedef std::vector<Request*> RequestVector;
   typedef std::map<HostPortProxyPair, RequestSet> SpdySessionRequestMap;
-  typedef std::map<HttpPipelinedHost::Key, RequestSet> HttpPipeliningRequestMap;
+  typedef std::map<HttpPipelinedHost::Key,
+                   RequestVector> HttpPipeliningRequestMap;
 
   bool GetAlternateProtocolRequestFor(const GURL& original_url,
                                       GURL* alternate_url) const;
 
   // Detaches |job| from |request|.
   void OrphanJob(Job* job, const Request* request);
 
   // Called when a SpdySession is ready. It will find appropriate Requests and
   // fulfill them. |direct| indicates whether or not |spdy_session| uses a
   // proxy.
@@ skipping 50 matching lines @@
   // object. They're owned by HttpStreamFactoryImpl. Leftover jobs will be
   // deleted when the factory is destroyed.
   std::set<const Job*> preconnect_job_set_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_