Rather than passing initial_flow_control_window all the way down the

net/tools/quic/quic_server.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_server.h"
 
 #include <errno.h>
 #include <features.h>
 #include <netinet/in.h>
 #include <string.h>
@@ skipping 24 matching lines @@
 namespace net {
 namespace tools {
 
 QuicServer::QuicServer()
     : port_(0),
       fd_(-1),
       packets_dropped_(0),
       overflow_supported_(false),
       use_recvmmsg_(false),
       crypto_config_(kSourceAddressTokenSecret, QuicRandom::GetInstance()),
-      supported_versions_(QuicSupportedVersions()),
-      server_initial_flow_control_receive_window_(
-          kServerInitialFlowControlWindow) {
+      supported_versions_(QuicSupportedVersions()) {
   // Use hardcoded crypto parameters for now.
   config_.SetDefaults();
   Initialize();
 }
 
 QuicServer::QuicServer(const QuicConfig& config,
-                       const QuicVersionVector& supported_versions,
-                       uint32 server_initial_flow_control_receive_window)
+                       const QuicVersionVector& supported_versions)
     : port_(0),
       fd_(-1),
       packets_dropped_(0),
       overflow_supported_(false),
       use_recvmmsg_(false),
       config_(config),
       crypto_config_(kSourceAddressTokenSecret, QuicRandom::GetInstance()),
-      supported_versions_(supported_versions),
-      server_initial_flow_control_receive_window_(
-          server_initial_flow_control_receive_window) {
+      supported_versions_(supported_versions) {
   Initialize();
 }
 
 void QuicServer::Initialize() {
 #if MMSG_MORE
   use_recvmmsg_ = true;
 #endif
   epoll_server_.set_timeout_in_us(50 * 1000);
   // Initialize the in memory cache now.
   QuicInMemoryCache::GetInstance();
 
   QuicEpollClock clock(&epoll_server_);
 
   scoped_ptr<CryptoHandshakeMessage> scfg(
       crypto_config_.AddDefaultConfig(
           QuicRandom::GetInstance(), &clock,
           QuicCryptoServerConfig::ConfigOptions()));
+
+  // Set flow control options in the config.
+  config_.SetInitialCongestionWindowToSend(kServerInitialFlowControlWindow);
 }
 
 QuicServer::~QuicServer() {
 }
 
 bool QuicServer::Listen(const IPEndPoint& address) {
   port_ = address.port();
   int address_family = address.GetSockAddrFamily();
   fd_ = socket(address_family, SOCK_DGRAM | SOCK_NONBLOCK, IPPROTO_UDP);
   if (fd_ < 0) {
@@ skipping 68 matching lines @@
     }
     port_ = server_address.port();
     DVLOG(1) << "Kernel assigned port is " << port_;
   }
 
   epoll_server_.RegisterFD(fd_, this, kEpollFlags);
   dispatcher_.reset(new QuicDispatcher(
       config_,
       crypto_config_,
       supported_versions_,
-      &epoll_server_,
-      server_initial_flow_control_receive_window_));
+      &epoll_server_));
   dispatcher_->Initialize(fd_);
 
   return true;
 }
 
 void QuicServer::WaitForEvents() {
   epoll_server_.WaitForEventsAndExecuteCallbacks();
 }
 
 void QuicServer::Shutdown() {
@@ skipping 51 matching lines @@
   QuicEncryptedPacket packet(buf, bytes_read, false);
 
   IPEndPoint server_address(server_ip, port);
   dispatcher->ProcessPacket(server_address, client_address, packet);
 
   return true;
 }
 
 }  // namespace tools
 }  // namespace net