Rather than passing initial_flow_control_window all the way down the

net/tools/quic/quic_dispatcher.cc

 // 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.
 
 #include "net/tools/quic/quic_dispatcher.h"
 
 #include <errno.h>
 
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
@@ skipping 144 matching lines @@
  private:
   QuicDispatcher* dispatcher_;
 
   // Latched in OnUnauthenticatedPublicHeader for use later.
   QuicConnectionId connection_id_;
 };
 
 QuicDispatcher::QuicDispatcher(const QuicConfig& config,
                                const QuicCryptoServerConfig& crypto_config,
                                const QuicVersionVector& supported_versions,
-                               EpollServer* epoll_server,
-                               uint32 initial_flow_control_window_bytes)
+                               EpollServer* epoll_server)
     : config_(config),
       crypto_config_(crypto_config),
       delete_sessions_alarm_(new DeleteSessionsAlarm(this)),
       epoll_server_(epoll_server),
       helper_(new QuicEpollConnectionHelper(epoll_server_)),
       supported_versions_(supported_versions),
       supported_versions_no_flow_control_(supported_versions),
       supported_versions_no_connection_flow_control_(supported_versions),
       current_packet_(NULL),
       framer_(supported_versions, /*unused*/ QuicTime::Zero(), true),
-      framer_visitor_(new QuicFramerVisitor(this)),
-      initial_flow_control_window_bytes_(initial_flow_control_window_bytes) {
+      framer_visitor_(new QuicFramerVisitor(this)) {
   framer_.set_visitor(framer_visitor_.get());
 }
 
 QuicDispatcher::~QuicDispatcher() {
   STLDeleteValues(&session_map_);
   STLDeleteElements(&closed_session_list_);
 }
 
 void QuicDispatcher::Initialize(int fd) {
   DCHECK(writer_ == NULL);
@@ skipping 188 matching lines @@
 
 QuicSession* QuicDispatcher::CreateQuicSession(
     QuicConnectionId connection_id,
     const IPEndPoint& server_address,
     const IPEndPoint& client_address) {
   QuicServerSession* session = new QuicServerSession(
       config_,
       CreateQuicConnection(connection_id,
                            server_address,
                            client_address),
-      initial_flow_control_window_bytes_,
       this);
   session->InitializeSession(crypto_config_);
   return session;
 }
 
 QuicConnection* QuicDispatcher::CreateQuicConnection(
     QuicConnectionId connection_id,
     const IPEndPoint& server_address,
     const IPEndPoint& client_address) {
   if (FLAGS_enable_quic_stream_flow_control_2 &&
@@ skipping 36 matching lines @@
   framer_.set_version(time_wait_list_manager_->GetQuicVersionFromConnectionId(
       header.connection_id));
 
   // Continue parsing the packet to extract the sequence number.  Then
   // send it to the time wait manager in OnUnathenticatedHeader.
   return true;
 }
 
 }  // namespace tools
 }  // namespace net