Remove callers of deprecatedShadowAncestorNode

Source/core/page/DragController.cpp

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 304 matching lines @@
     float zoomFactor = frame ? frame->pageZoomFactor() : 1;
     LayoutPoint point = roundedLayoutPoint(FloatPoint(p.x() * zoomFactor, p.y() * zoomFactor));
 
     HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
     HitTestResult result(point);
     documentUnderMouse->renderView()->hitTest(request, result);
 
     Node* n = result.innerNode();
     while (n && !n->isElementNode())
         n = n->parentOrShadowHostNode();
-    if (n)
-        n = n->deprecatedShadowAncestorNode();
+    if (n && n->isInShadowTree())
+        n = n->shadowHost();
 
     return toElement(n);
 }
 
 bool DragController::tryDocumentDrag(DragData* dragData, DragDestinationAction actionMask, DragSession& dragSession)
 {
     ASSERT(dragData);
 
     if (!m_documentUnderMouse)
         return false;
@@ skipping 628 matching lines @@
 
 void DragController::trace(Visitor* visitor)
 {
     visitor->trace(m_page);
     visitor->trace(m_documentUnderMouse);
     visitor->trace(m_dragInitiator);
     visitor->trace(m_fileInputElementUnderMouse);
 }
 
 } // namespace WebCore