Basic HTTP pipelining support

net/http/http_stream_factory_impl_job.h

 // Copyright (c) 2011 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 "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/task.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_log.h"
 #include "net/base/ssl_config_service.h"
 #include "net/http/http_alternate_protocols.h"
 #include "net/http/http_auth.h"
 #include "net/http/http_auth_controller.h"
 #include "net/http/http_request_info.h"
 #include "net/http/http_stream_factory_impl.h"
 #include "net/proxy/proxy_service.h"
 #include "net/socket/client_socket_handle.h"
 
 namespace net {
 
 class ClientSocketHandle;
 class HttpAuthController;
 class HttpNetworkSession;
+class HttpPipelinedConnection;
 class HttpProxySocketParams;
 class HttpStream;
 class SOCKSSocketParams;
 class SSLSocketParams;
 class TransportSocketParams;
 
 // An HttpStreamRequestImpl exists for each stream which is in progress of being
 // created for the StreamFactory.
 class HttpStreamFactoryImpl::Job {
  public:
@@ skipping 154 matching lines @@
 
   // Moves this stream request into SPDY mode.
   void SwitchToSpdyMode();
 
   // Should we force SPDY to run over SSL for this stream request.
   bool ShouldForceSpdySSL() const;
 
   // Should we force SPDY to run without SSL for this stream request.
   bool ShouldForceSpdyWithoutSSL() const;
 
+  bool IsRequestEligibleForPipelining() const;
+
   // Record histograms of latency until Connect() completes.
   static void LogHttpConnectedMetrics(const ClientSocketHandle& handle);
 
   void HACKCrashHereToDebug80095();
 
   Request* request_;
 
   const HttpRequestInfo request_info_;
   ProxyInfo proxy_info_;
   SSLConfig server_ssl_config_;
@@ skipping 59 matching lines @@
 
   // Initialized when we create a new SpdySession.
   scoped_refptr<SpdySession> new_spdy_session_;
 
   // Initialized when we have an existing SpdySession.
   scoped_refptr<SpdySession> existing_spdy_session_;
 
   // Only used if |new_spdy_session_| is non-NULL.
   bool spdy_session_direct_;
 
+  // Initialized when an existing pipeline can handle this job's request.
+  HttpPipelinedConnection* existing_available_pipeline_;
+
   ScopedRunnableMethodFactory<Job> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_