Emit session-level WINDOW_UPDATEs less frequently.

net/spdy/spdy_session_pool.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/spdy/spdy_session_pool.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/values.h"
@@ skipping 19 matching lines @@
 
 SpdySessionPool::SpdySessionPool(
     HostResolver* resolver,
     SSLConfigService* ssl_config_service,
     const base::WeakPtr<HttpServerProperties>& http_server_properties,
     TransportSecurityState* transport_security_state,
     bool force_single_domain,
     bool enable_compression,
     bool enable_ping_based_connection_checking,
     NextProto default_protocol,
+    size_t session_max_recv_window_size,
     size_t stream_initial_recv_window_size,
     size_t initial_max_concurrent_streams,
     size_t max_concurrent_streams_limit,
     SpdySessionPool::TimeFunc time_func,
     const std::string& trusted_spdy_proxy)
     : http_server_properties_(http_server_properties),
       transport_security_state_(transport_security_state),
       ssl_config_service_(ssl_config_service),
       resolver_(resolver),
       verify_domain_authentication_(true),
       enable_sending_initial_data_(true),
       force_single_domain_(force_single_domain),
       enable_compression_(enable_compression),
       enable_ping_based_connection_checking_(
           enable_ping_based_connection_checking),
       // TODO(akalin): Force callers to have a valid value of
       // |default_protocol_|.
-      default_protocol_(
-          (default_protocol == kProtoUnknown) ?
-          kProtoSPDY31 : default_protocol),
+      default_protocol_((default_protocol == kProtoUnknown) ? kProtoSPDY31
+                                                            : default_protocol),
+      session_max_recv_window_size_(session_max_recv_window_size),
       stream_initial_recv_window_size_(stream_initial_recv_window_size),
       initial_max_concurrent_streams_(initial_max_concurrent_streams),
       max_concurrent_streams_limit_(max_concurrent_streams_limit),
       time_func_(time_func),
-      trusted_spdy_proxy_(
-          HostPortPair::FromString(trusted_spdy_proxy)) {
+      trusted_spdy_proxy_(HostPortPair::FromString(trusted_spdy_proxy)) {
   DCHECK(default_protocol_ >= kProtoSPDYMinimumVersion &&
          default_protocol_ <= kProtoSPDYMaximumVersion);
   NetworkChangeNotifier::AddIPAddressObserver(this);
   if (ssl_config_service_.get())
     ssl_config_service_->AddObserver(this);
   CertDatabase::GetInstance()->AddObserver(this);
 }
 
 SpdySessionPool::~SpdySessionPool() {
   CloseAllSessions();
@@ skipping 15 matching lines @@
     scoped_ptr<ClientSocketHandle> connection,
     const BoundNetLog& net_log,
     int certificate_error_code,
     bool is_secure) {
   DCHECK_GE(default_protocol_, kProtoSPDYMinimumVersion);
   DCHECK_LE(default_protocol_, kProtoSPDYMaximumVersion);
 
   UMA_HISTOGRAM_ENUMERATION(
       "Net.SpdySessionGet", IMPORTED_FROM_SOCKET, SPDY_SESSION_GET_MAX);
 
-  scoped_ptr<SpdySession> new_session(
-      new SpdySession(key,
-                      http_server_properties_,
-                      transport_security_state_,
-                      verify_domain_authentication_,
-                      enable_sending_initial_data_,
-                      enable_compression_,
-                      enable_ping_based_connection_checking_,
-                      default_protocol_,
-                      stream_initial_recv_window_size_,
-                      initial_max_concurrent_streams_,
-                      max_concurrent_streams_limit_,
-                      time_func_,
-                      trusted_spdy_proxy_,
-                      net_log.net_log()));
+  scoped_ptr<SpdySession> new_session(new SpdySession(
+      key, http_server_properties_, transport_security_state_,
+      verify_domain_authentication_, enable_sending_initial_data_,
+      enable_compression_, enable_ping_based_connection_checking_,
+      default_protocol_, session_max_recv_window_size_,
+      stream_initial_recv_window_size_, initial_max_concurrent_streams_,
+      max_concurrent_streams_limit_, time_func_, trusted_spdy_proxy_,
+      net_log.net_log()));
 
   new_session->InitializeWithSocket(
       connection.Pass(), this, is_secure, certificate_error_code);
 
   base::WeakPtr<SpdySession> available_session = new_session->GetWeakPtr();
   sessions_.insert(new_session.release());
   MapKeyToAvailableSession(key, available_session);
 
   net_log.AddEvent(
       NetLog::TYPE_HTTP2_SESSION_POOL_IMPORTED_SESSION_FROM_SOCKET,
@@ skipping 273 matching lines @@
 
     if (idle_only && (*it)->is_active())
       continue;
 
     (*it)->CloseSessionOnError(error, description);
     DCHECK(!IsSessionAvailable(*it));
   }
 }
 
 }  // namespace net