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

net/proxy/proxy_service.h

 // Copyright (c) 2011 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.
 
 #ifndef NET_PROXY_PROXY_SERVICE_H_
 #define NET_PROXY_PROXY_SERVICE_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 16 matching lines @@
 class HostResolver;
 class InitProxyResolver;
 class ProxyResolver;
 class ProxyScriptFetcher;
 class URLRequestContext;
 
 // This class can be used to resolve the proxy server to use when loading a
 // HTTP(S) URL.  It uses the given ProxyResolver to handle the actual proxy
 // resolution.  See ProxyResolverV8 for example.
 class ProxyService : public base::RefCountedThreadSafe<ProxyService>,
-                     public NetworkChangeNotifier::Observer,
+                     public NetworkChangeNotifier::IPAddressObserver,
                      public ProxyConfigService::Observer {
  public:
   // The instance takes ownership of |config_service| and |resolver|.
   // |net_log| is a possibly NULL destination to send log events to. It must
   // remain alive for the lifetime of this ProxyService.
   ProxyService(ProxyConfigService* config_service,
                ProxyResolver* resolver,
                NetLog* net_log);
 
   // Used internally to handle PAC queries.
@@ skipping 225 matching lines @@
   // Called when proxy resolution has completed (either synchronously or
   // asynchronously). Handles logging the result, and cleaning out
   // bad entries from the results list.
   int DidFinishResolvingProxy(ProxyInfo* result,
                               int result_code,
                               const BoundNetLog& net_log);
 
   // Start initialization using |fetched_config_|.
   void InitializeUsingLastFetchedConfig();
 
-  // NetworkChangeNotifier::Observer
+  // NetworkChangeNotifier::IPAddressObserver
   // When this is called, we re-fetch PAC scripts and re-run WPAD.
   virtual void OnIPAddressChanged();
 
   // ProxyConfigService::Observer
   virtual void OnProxyConfigChanged(const ProxyConfig& config);
 
   scoped_ptr<ProxyConfigService> config_service_;
   scoped_ptr<ProxyResolver> resolver_;
 
   // We store the proxy configuration that was last fetched from the
@@ skipping 75 matching lines @@
 
   base::WaitableEvent event_;
   CompletionCallbackImpl<SyncProxyServiceHelper> callback_;
   ProxyInfo proxy_info_;
   int result_;
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_SERVICE_H_