Add hit testing mode which ignores pointer-events:none.

Source/WebCore/rendering/RenderTable.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1380 matching lines @@
                 if (child->nodeAtPoint(request, result, locationInContainer, childPoint, action)) {
                     updateHitTestResult(result, toLayoutPoint(locationInContainer.point() - childPoint));
                     return true;
                 }
             }
         }
     }
 
     // Check our bounds next.
     LayoutRect boundsRect(adjustedLocation, size());
-    if (visibleToHitTesting() && (action == HitTestBlockBackground || action == HitTestChildBlockBackground) && locationInContainer.intersects(boundsRect)) {
+    if (visibleToHitTestRequest(request) && (action == HitTestBlockBackground || action == HitTestChildBlockBackground) && locationInContainer.intersects(boundsRect)) {
         updateHitTestResult(result, flipForWritingMode(locationInContainer.point() - toLayoutSize(adjustedLocation)));
         if (!result.addNodeToRectBasedTestResult(node(), request, locationInContainer, boundsRect))
             return true;
     }
 
     return false;
 }
 
 RenderTable* RenderTable::createAnonymousWithParentRenderer(const RenderObject* parent)
 {
@@ skipping 16 matching lines @@
 const BorderValue& RenderTable::tableEndBorderAdjoiningCell(const RenderTableCell* cell) const
 {
     ASSERT(cell->isFirstOrLastCellInRow());
     if (hasSameDirectionAs(cell->row()))
         return style()->borderEnd();
 
     return style()->borderStart();
 }
 
 }