Add a GetAlternativeService method to HttpStream to return any

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 46 matching lines @@
   int ReadResponseHeaders(const CompletionCallback& callback) override;
   int ReadResponseBody(IOBuffer* buf,
                        int buf_len,
                        const CompletionCallback& callback) override;
   void Close(bool not_reusable) override;
   bool IsResponseBodyComplete() const override;
   bool IsConnectionReused() const override;
   int64_t GetTotalReceivedBytes() const override;
   int64_t GetTotalSentBytes() const override;
   bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override;
+  bool GetAlternativeService(
+      AlternativeService* alternative_service) const override;
   void PopulateNetErrorDetails(NetErrorDetails* details) override;
   void SetPriority(RequestPriority priority) override;
 
   // QuicChromiumClientStream::Delegate implementation
   void OnHeadersAvailable(const SpdyHeaderBlock& headers,
                           size_t frame_len) override;
   void OnDataAvailable() override;
   void OnClose() override;
   void OnError(int error) override;
   bool HasSendHeadersComplete() override;
@@ skipping 159 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_