Plumb through NetworkChangeNotifier::IsOffline() to WebKit, enabling

net/spdy/spdy_session_pool.cc

 // Copyright (c) 2010 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/values.h"
 #include "net/http/http_network_session.h"
 #include "net/spdy/spdy_session.h"
 
 namespace net {
 
 // The maximum number of sessions to open to a single domain.
 static const size_t kMaxSessionsPerDomain = 1;
 
 int SpdySessionPool::g_max_sessions_per_domain = kMaxSessionsPerDomain;
 bool SpdySessionPool::g_force_single_domain = false;
 
 SpdySessionPool::SpdySessionPool(SSLConfigService* ssl_config_service)
     : ssl_config_service_(ssl_config_service) {
-  NetworkChangeNotifier::AddObserver(this);
+  NetworkChangeNotifier::AddIPAddressObserver(this);
   if (ssl_config_service_)
     ssl_config_service_->AddObserver(this);
 }
 
 SpdySessionPool::~SpdySessionPool() {
   CloseAllSessions();
 
   if (ssl_config_service_)
     ssl_config_service_->RemoveObserver(this);
-  NetworkChangeNotifier::RemoveObserver(this);
+  NetworkChangeNotifier::RemoveIPAddressObserver(this);
 }
 
 scoped_refptr<SpdySession> SpdySessionPool::Get(
     const HostPortProxyPair& host_port_proxy_pair,
     const BoundNetLog& net_log) {
   scoped_refptr<SpdySession> spdy_session;
   SpdySessionList* list = GetSessionList(host_port_proxy_pair);
   if (list) {
     if (list->size() >= static_cast<unsigned int>(g_max_sessions_per_domain)) {
       spdy_session = list->front();
@@ skipping 171 matching lines @@
     session->CloseSessionOnError(net::ERR_ABORTED, false);
     list->pop_front();
     if (list->empty()) {
       delete list;
       old_map.erase(old_map.begin()->first);
     }
   }
 }
 
 }  // namespace net