Massively simplify the NetworkChangeNotifier infrastructure:...

net/http/http_network_layer.h

Index: net/http/http_network_layer.h
===================================================================
--- net/http/http_network_layer.h	(revision 50775)
+++ net/http/http_network_layer.h	(working copy)
@@ -19,7 +19,6 @@
 class HttpNetworkDelegate;
 class HttpNetworkSession;
 class NetLog;
-class NetworkChangeNotifier;
 class ProxyInfo;
 class ProxyService;
 class SpdySessionPool;
@@ -27,11 +26,11 @@
 
 class HttpNetworkLayer : public HttpTransactionFactory {
  public:
-  // |socket_factory|, |network_change_notifier|, |proxy_service| and
-  // |host_resolver| must remain valid for the lifetime of HttpNetworkLayer.
+  // |socket_factory|, |proxy_service| and |host_resolver| must remain valid for
+  // the lifetime of HttpNetworkLayer.
   HttpNetworkLayer(ClientSocketFactory* socket_factory,
-                   NetworkChangeNotifier* network_change_notifier,
-                   HostResolver* host_resolver, ProxyService* proxy_service,
+                   HostResolver* host_resolver,
+                   ProxyService* proxy_service,
                    SSLConfigService* ssl_config_service,
                    HttpAuthHandlerFactory* http_auth_handler_factory,
                    HttpNetworkDelegate* network_delegate,
@@ -44,7 +43,6 @@
   // This function hides the details of how a network layer gets instantiated
   // and allows other implementations to be substituted.
   static HttpTransactionFactory* CreateFactory(
-      NetworkChangeNotifier* network_change_notifier,
       HostResolver* host_resolver,
       ProxyService* proxy_service,
       SSLConfigService* ssl_config_service,
@@ -77,8 +75,6 @@
   // The factory we will use to create network sockets.
   ClientSocketFactory* socket_factory_;
 
-  NetworkChangeNotifier* network_change_notifier_;
-
   // The host resolver and proxy service that will be used when lazily
   // creating |session_|.
   scoped_refptr<HostResolver> host_resolver_;