Create a QuicChromiumClientStream::Handle class for allowing a stream

net/quic/chromium/quic_http_stream.h

 // Copyright (c) 2012 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_QUIC_CHROMIUM_QUIC_HTTP_STREAM_H_
 #define NET_QUIC_CHROMIUM_QUIC_HTTP_STREAM_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 63 matching lines @@
   void OnDataAvailable() override;
   void OnTrailingHeadersAvailable(const SpdyHeaderBlock& headers,
                                   size_t frame_len) override;
   void OnClose() override;
   void OnError(int error) override;
 
   // QuicClientPushPromiseIndex::Delegate implementation
   bool CheckVary(const SpdyHeaderBlock& client_request,
                  const SpdyHeaderBlock& promise_request,
                  const SpdyHeaderBlock& promise_response) override;
+  // TODO(rch): QuicClientPushPromiseIndex::Delegate is part of shared code.
+  // Figure out how to make the QuicHttpStream receive a Handle in this
+  // case instead of a QuicSpdyStream.
   void OnRendezvousResult(QuicSpdyStream* stream) override;
 
   static HttpResponseInfo::ConnectionInfo ConnectionInfoFromQuicVersion(
       QuicVersion quic_version);
 
  private:
   friend class test::QuicHttpStreamPeer;
 
   enum State {
     STATE_NONE,
@@ skipping 51 matching lines @@
   }
 
   const QuicChromiumClientSession::Handle* quic_session() const {
     return static_cast<const QuicChromiumClientSession::Handle*>(session());
   }
 
   State next_state_;
 
   HttpServerProperties* http_server_properties_;  // Unowned.
 
-  QuicChromiumClientStream* stream_;  // Non-owning.
+  std::unique_ptr<QuicChromiumClientStream::Handle> stream_;
 
   // The following three fields are all owned by the caller and must
   // outlive this object, according to the HttpStream contract.
 
   // The request to send.
   // Only valid before the response body is read.
   const HttpRequestInfo* request_info_;
 
   // The request body to send, if any, owned by the caller.
   UploadDataStream* request_body_stream_;
@@ skipping 62 matching lines @@
   LoadTimingInfo::ConnectTiming connect_timing_;
 
   base::WeakPtrFactory<QuicHttpStream> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicHttpStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CHROMIUM_QUIC_HTTP_STREAM_H_