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

net/socket/client_socket_pool_base.h

Index: net/socket/client_socket_pool_base.h
diff --git a/net/socket/client_socket_pool_base.h b/net/socket/client_socket_pool_base.h
index 1798997c3512f3fbd155f216afef9de63dab6a68..89273cc239af21d3ef1609bdd8af9c771480e193 100644
--- a/net/socket/client_socket_pool_base.h
+++ b/net/socket/client_socket_pool_base.h
@@ -156,7 +156,7 @@ namespace internal {
 // ClientSocketPoolBase instead.
 class ClientSocketPoolBaseHelper
     : public ConnectJob::Delegate,
-      public NetworkChangeNotifier::Observer {
+      public NetworkChangeNotifier::IPAddressObserver {
  public:
   typedef uint32 Flags;
 
@@ -289,7 +289,7 @@ class ClientSocketPoolBaseHelper
   // ConnectJob::Delegate methods:
   virtual void OnConnectJobComplete(int result, ConnectJob* job);
 
-  // NetworkChangeNotifier::Observer methods:
+  // NetworkChangeNotifier::IPAddressObserver methods:
   virtual void OnIPAddressChanged();
 
  private: