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

Source/WebCore/rendering/InlineTextBox.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 358 matching lines @@
 }
 
 bool InlineTextBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit /* lineTop */, LayoutUnit /*lineBottom*/)
 {
     if (isLineBreak())
         return false;
 
     FloatPoint boxOrigin = locationIncludingFlipping();
     boxOrigin.moveBy(accumulatedOffset);
     FloatRect rect(boxOrigin, size());
-    if (m_truncation != cFullTruncation && visibleToHitTesting() && locationInContainer.intersects(rect)) {
+    if (m_truncation != cFullTruncation && visibleToHitTestRequest(request) && locationInContainer.intersects(rect)) {
         renderer()->updateHitTestResult(result, flipForWritingMode(locationInContainer.point() - toLayoutSize(accumulatedOffset)));
         if (!result.addNodeToRectBasedTestResult(renderer()->node(), request, locationInContainer, rect))
             return true;
     }
     return false;
 }
 
 FloatSize InlineTextBox::applyShadowToGraphicsContext(GraphicsContext* context, const ShadowData* shadow, const FloatRect& textRect, bool stroked, bool opaque, bool horizontal)
 {
     if (!shadow)
@@ skipping 1239 matching lines @@
 
 void InlineTextBox::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::Rendering);
     InlineBox::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_prevTextBox, "prevTextBox");
     info.addMember(m_nextTextBox, "nextTextBox");
 }
 
 } // namespace WebCore