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

Source/WebCore/rendering/RenderRegion.cpp

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 164 matching lines @@
     if (!isValid())
         return false;
 
     LayoutPoint adjustedLocation = accumulatedOffset + location();
 
     // Check our bounds next. For this purpose always assume that we can only be hit in the
     // foreground phase (which is true for replaced elements like images).
     // FIXME: Once we support overflow, we need to intersect with that and not with the bounds rect.
     LayoutRect boundsRect = borderBoxRectInRegion(locationInContainer.region());
     boundsRect.moveBy(adjustedLocation);
-    if (visibleToHitTesting() && action == HitTestForeground && locationInContainer.intersects(boundsRect)) {
+    if (visibleToHitTestRequest(request) && action == HitTestForeground && locationInContainer.intersects(boundsRect)) {
         // Check the contents of the RenderFlowThread.
         if (m_flowThread->hitTestFlowThreadPortionInRegion(this, flowThreadPortionRect(), flowThreadPortionOverflowRect(), request, result, locationInContainer, LayoutPoint(adjustedLocation.x() + borderLeft() + paddingLeft(), adjustedLocation.y() + borderTop() + paddingTop())))
             return true;
         updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
         if (!result.addNodeToRectBasedTestResult(generatingNode(), request, locationInContainer, boundsRect))
             return true;
     }
 
     return false;
 }
@@ skipping 452 matching lines @@
     if (!hasOverrideHeight())
         return;
 
     LayoutUnit newLogicalHeight = overrideLogicalContentHeight() + borderAndPaddingLogicalHeight();
     ASSERT(newLogicalHeight < LayoutUnit::max() / 2);
     if (newLogicalHeight > logicalHeight())
         setLogicalHeight(newLogicalHeight);
 }
 
 } // namespace WebCore