add previously focused node to WebClient::focusedNodeChanged

Source/core/loader/EmptyClients.h

 /*
  * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
  * Copyright (C) 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 63 matching lines @@
     virtual void setWindowRect(const FloatRect&) override { }
     virtual FloatRect windowRect() override { return FloatRect(); }
 
     virtual FloatRect pageRect() override { return FloatRect(); }
 
     virtual void focus() override { }
 
     virtual bool canTakeFocus(WebFocusType) override { return false; }
     virtual void takeFocus(WebFocusType) override { }
 
-    virtual void focusedNodeChanged(Node*) override { }
+    virtual void focusedNodeChanged(Node*, Node*) override { }
     virtual void focusedFrameChanged(LocalFrame*) override { }
     virtual Page* createWindow(LocalFrame*, const FrameLoadRequest&, const WindowFeatures&, NavigationPolicy, ShouldSendReferrer) override { return 0; }
     virtual void show(NavigationPolicy) override { }
 
     virtual bool canRunModal() override { return false; }
     virtual void runModal() override { }
 
     virtual void setToolbarsVisible(bool) override { }
     virtual bool toolbarsVisible() override { return false; }
 
@@ skipping 232 matching lines @@
 public:
     virtual PassOwnPtr<StorageNamespace> createSessionStorageNamespace() override;
     virtual bool canAccessStorage(LocalFrame*, StorageType) const override { return false; }
 };
 
 void fillWithEmptyClients(Page::PageClients&);
 
 }
 
 #endif // EmptyClients_h