Remove HTTP pipelining support.

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 8f371657a3e02d72f7735708d110664b57dacf3d..9659d45060a9a47e1ea5ad86a6a4c62a04ca675f 100644
--- a/net/http/http_stream_factory_impl_job.h
+++ b/net/http/http_stream_factory_impl_job.h
@@ -13,7 +13,6 @@
 #include "net/base/request_priority.h"
 #include "net/http/http_auth.h"
 #include "net/http/http_auth_controller.h"
-#include "net/http/http_pipelined_host.h"
 #include "net/http/http_request_info.h"
 #include "net/http/http_stream_factory_impl.h"
 #include "net/proxy/proxy_service.h"
@@ -230,8 +229,6 @@ class HttpStreamFactoryImpl::Job {
   // Should we force QUIC for this stream request.
   bool ShouldForceQuic() const;
 
-  bool IsRequestEligibleForPipelining();
-
   void MaybeMarkAlternateProtocolBroken();
 
   // Record histograms of latency until Connect() completes.
@@ -331,12 +328,6 @@ class HttpStreamFactoryImpl::Job {
   // Only used if |new_spdy_session_| is non-NULL.
   bool spdy_session_direct_;
 
-  // Key used to identify the HttpPipelinedHost for |request_|.
-  scoped_ptr<HttpPipelinedHost::Key> http_pipelining_key_;
-
-  // True if an existing pipeline can handle this job's request.
-  bool existing_available_pipeline_;
-
   JobStatus job_status_;
   JobStatus other_job_status_;