Revert of Implement QUIC-based net::BidirectionalStream

net/http/http_stream_factory_impl_request.h

Index: net/http/http_stream_factory_impl_request.h
diff --git a/net/http/http_stream_factory_impl_request.h b/net/http/http_stream_factory_impl_request.h
index cad61afcce468ef79c2f4538d9d088c8180f1131..a92303c97b912462ca26b1b4b7d06e892fa8a814 100644
--- a/net/http/http_stream_factory_impl_request.h
+++ b/net/http/http_stream_factory_impl_request.h
@@ -27,6 +27,12 @@
 
 class HttpStreamFactoryImpl::Request : public HttpStreamRequest {
  public:
+  // Indicates which type of stream is requested.
+  enum StreamType {
+    BIDIRECTIONAL_STREAM_SPDY_JOB,
+    HTTP_STREAM,
+  };
+
   Request(const GURL& url,
           HttpStreamFactoryImpl* factory,
           HttpStreamRequest::Delegate* delegate,
@@ -63,9 +69,8 @@
   void RemoveRequestFromSpdySessionRequestMap();
 
   // Called by an attached Job if it sets up a SpdySession.
-  // |stream| is null when |stream_type| is HttpStreamRequest::HTTP_STREAM.
-  // |bidirectional_stream_spdy_job| is null when |stream_type| is
-  // HttpStreamRequest::BIDIRECTIONAL_STREAM.
+  // |stream| is null when |for_bidirectional| is true.
+  // |bidirectional_stream_spdy_job| is null when |for_bidirectional| is false.
   void OnNewSpdySessionReady(
       Job* job,
       scoped_ptr<HttpStream> stream,
@@ -134,7 +139,7 @@
   NextProto protocol_negotiated() const override;
   bool using_spdy() const override;
   const ConnectionAttempts& connection_attempts() const override;
-  HttpStreamRequest::StreamType stream_type() const { return stream_type_; }
+  bool for_bidirectional() const { return for_bidirectional_; }
 
  private:
   // Used to bind |job| to the request and orphan all other jobs in |jobs_|.
@@ -168,7 +173,7 @@
   bool using_spdy_;
   ConnectionAttempts connection_attempts_;
 
-  const HttpStreamRequest::StreamType stream_type_;
+  const bool for_bidirectional_;
   DISALLOW_COPY_AND_ASSIGN(Request);
 };