Add a QuicHttpStream class.

net/quic/quic_reliable_client_stream.h

Index: net/quic/quic_reliable_client_stream.h
diff --git a/net/quic/quic_reliable_client_stream.h b/net/quic/quic_reliable_client_stream.h
index 7c5986d4fe0328ddc6b7e76eea4513f4fa7920b1..3a72b5f72bf63b266c97da5051664a52cfcd0fdb 100644
--- a/net/quic/quic_reliable_client_stream.h
+++ b/net/quic/quic_reliable_client_stream.h
@@ -7,6 +7,7 @@
 #ifndef NET_QUIC_QUIC_RELIABLE_CLIENT_STREAM_H_
 #define NET_QUIC_QUIC_RELIABLE_CLIENT_STREAM_H_
 
+#include "net/base/ip_endpoint.h"
 #include "net/base/upload_data_stream.h"
 #include "net/http/http_request_info.h"
 #include "net/http/http_response_info.h"
@@ -17,6 +18,8 @@ namespace net {
 
 class QuicClientSession;
 
+// A client-initiated ReliableQuicStream.  Instances of this class
+// are owned by the QuicClientSession which created them.
 class NET_EXPORT_PRIVATE QuicReliableClientStream : public ReliableQuicStream {
  public:
   // Delegate handles protocol specific behavior of a quic stream.
@@ -57,6 +60,7 @@ class NET_EXPORT_PRIVATE QuicReliableClientStream : public ReliableQuicStream {
   // ReliableQuicStream
   virtual uint32 ProcessData(const char* data, uint32 data_len) OVERRIDE;
   virtual void TerminateFromPeer(bool half_close) OVERRIDE;
+  using ReliableQuicStream::WriteData;
 
   // Set new |delegate|. |delegate| must not be NULL.
   // If this stream has already received data, OnDataReceived() will be