Buffer initial response headers in QuicChromiumClientStream

net/quic/chromium/quic_chromium_client_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.
 //
 // NOTE: This code is not shared between Google and Chrome.
 
 #ifndef NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_STREAM_H_
 #define NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_STREAM_H_
 
 #include <stddef.h>
@@ skipping 108 matching lines @@
   using QuicSpdyStream::HasBufferedData;
   using QuicStream::sequencer;
 
  private:
   void NotifyDelegateOfHeadersCompleteLater(SpdyHeaderBlock headers,
                                             size_t frame_len);
   void NotifyDelegateOfHeadersComplete(SpdyHeaderBlock headers,
                                        size_t frame_len);
   void NotifyDelegateOfDataAvailableLater();
   void NotifyDelegateOfDataAvailable();
-  void RunOrBuffer(base::Closure closure);
 
   NetLogWithSource net_log_;
   Delegate* delegate_;
 
   bool headers_delivered_;
 
   // True when initial headers have been sent.
   bool initial_headers_sent_;
 
   // Callback to be invoked when WriteStreamData or WritevStreamData completes
   // asynchronously.
   CompletionCallback write_callback_;
 
   QuicClientSessionBase* session_;
 
   // Set to false if this stream to not be migrated during connection migration.
   bool can_migrate_;
 
-  // Holds notifications generated before delegate_ is set.
-  std::deque<base::Closure> delegate_tasks_;
+  // Stores the initial header if they arrive before the delegate.
+  SpdyHeaderBlock initial_headers_;
+  // Length of the HEADERS frame containing initial headers.
+  size_t initial_headers_frame_len_;
 
   base::WeakPtrFactory<QuicChromiumClientStream> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicChromiumClientStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_STREAM_H_