Added a net::BidirectionalStream to expose a bidirectional streaming interface

net/http/http_stream_factory_impl_job.h

Index: net/http/http_stream_factory_impl_job.h
diff --git a/net/http/http_stream_factory_impl_job.h b/net/http/http_stream_factory_impl_job.h
index 81b812a60833e0aab87eed5d1acdcc1a0ac1329e..e9c55d02fa130d2a220d67747c7d9ba3404e8a8a 100644
--- a/net/http/http_stream_factory_impl_job.h
+++ b/net/http/http_stream_factory_impl_job.h
@@ -86,6 +86,7 @@ class HttpStreamFactoryImpl::Job {
   NextProto protocol_negotiated() const;
   bool using_spdy() const;
   const BoundNetLog& net_log() const { return net_log_; }
+  bool for_bidirectional() const { return for_bidirectional_; }
 
   const SSLConfig& server_ssl_config() const;
   const SSLConfig& proxy_ssl_config() const;
@@ -194,6 +195,7 @@ class HttpStreamFactoryImpl::Job {
   };
 
   void OnStreamReadyCallback();
+  void OnBidirectionalStreamReadyCallback();
   void OnWebSocketHandshakeStreamReadyCallback();
   // This callback function is called when a new SPDY session is created.
   void OnNewSpdySessionReadyCallback();
@@ -368,6 +370,7 @@ class HttpStreamFactoryImpl::Job {
 
   scoped_ptr<HttpStream> stream_;
   scoped_ptr<WebSocketHandshakeStreamBase> websocket_stream_;
+  scoped_ptr<BidirectionalStream> bidirectional_stream_;
 
   // True if we negotiated NPN.
   bool was_npn_negotiated_;
@@ -393,6 +396,9 @@ class HttpStreamFactoryImpl::Job {
   JobStatus job_status_;
   JobStatus other_job_status_;
 
+  // True if BidirectionalStream is requested.
+  bool for_bidirectional_;
+
   base::WeakPtrFactory<Job> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);