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

Source/WebCore/rendering/InlineFlowBox.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 1048 matching lines @@
         LayoutUnit bottom = min(rootBox->lineBottom(), top + logicalHeight);
         top = max(rootBox->lineTop(), top);
         logicalHeight = bottom - top;
     }
 
     // Move x/y to our coordinates.
     LayoutRect rect(minX, minY, width, height);
     flipForWritingMode(rect);
     rect.moveBy(accumulatedOffset);
 
-    if (visibleToHitTesting() && locationInContainer.intersects(rect)) {
+    if (visibleToHitTestRequest(request) && locationInContainer.intersects(rect)) {
         renderer()->updateHitTestResult(result, flipForWritingMode(locationInContainer.point() - toLayoutSize(accumulatedOffset))); // Don't add in m_x or m_y here, we want coords in the containing block's space.
         if (!result.addNodeToRectBasedTestResult(renderer()->node(), request, locationInContainer, rect))
             return true;
     }
 
     return false;
 }
 
 void InlineFlowBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
 {
@@ skipping 580 matching lines @@
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::Rendering);
     InlineBox::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_overflow, "overflow");
     info.addMember(m_firstChild, "firstChild");
     info.addMember(m_lastChild, "lastChild");
     info.addMember(m_prevLineBox, "prevLineBox");
     info.addMember(m_nextLineBox, "nextLineBox");
 }
 
 } // namespace WebCore