relnote: Allow changing initial flow control window via connection options. Protected by --quic_lar…

net/quic/core/quic_session.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.
 //
 // A QuicSession, which demuxes a single connection to individual streams.
 
 #ifndef NET_QUIC_CORE_QUIC_SESSION_H_
 #define NET_QUIC_CORE_QUIC_SESSION_H_
 
 #include <stddef.h>
@@ skipping 354 matching lines @@
   // Called in OnConfigNegotiated when we receive a new connection level flow
   // control window in a negotiated config. Closes the connection if invalid.
   void OnNewSessionFlowControlWindow(QuicStreamOffset new_window);
 
   // Debug helper for |OnCanWrite()|, check that OnStreamWrite() makes
   // forward progress.  Returns false if busy loop detected.
   bool CheckStreamNotBusyLooping(QuicStream* stream,
                                  uint64_t previous_bytes_written,
                                  bool previous_fin_sent);
 
+  // Called in OnConfigNegotiated for Finch trials to measure performance of
+  // starting with larger flow control receive windows.
+  void AdjustInitialFlowControlWindows(size_t stream_window);
+
   // Keep track of highest received byte offset of locally closed streams, while
   // waiting for a definitive final highest offset from the peer.
   std::map<QuicStreamId, QuicStreamOffset>
       locally_closed_streams_highest_offset_;
 
   QuicConnection* connection_;
 
   // May be null.
   Visitor* visitor_;
 
@@ skipping 50 matching lines @@
   // The stream id which was last popped in OnCanWrite, or 0, if not under the
   // call stack of OnCanWrite.
   QuicStreamId currently_writing_stream_id_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_SESSION_H_