add previously focused node to WebClient::focusedNodeChanged

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 3539 matching lines @@
         }
     }
 
     if (!focusChangeBlocked && m_focusedElement) {
         // Create the AXObject cache in a focus change because Chromium relies on it.
         if (AXObjectCache* cache = axObjectCache())
             cache->handleFocusedUIElementChanged(oldFocusedElement.get(), newFocusedElement.get());
     }
 
     if (!focusChangeBlocked && frameHost())
-        frameHost()->chrome().focusedNodeChanged(m_focusedElement.get());
+        frameHost()->chrome().focusedNodeChanged(oldFocusedElement.get(), m_focusedElement.get());
 
 SetFocusedElementDone:
     updateRenderTreeIfNeeded();
     if (LocalFrame* frame = this->frame())
         frame->selection().didChangeFocus();
     return !focusChangeBlocked;
 }
 
 void Document::setCSSTarget(Element* newTarget)
 {
@@ skipping 2199 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().string().utf8().data());
 }
 #endif