Update touch-action hit-testing to match latest spec changes.

Source/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 3137 matching lines @@
 }
 
 bool RenderObject::isInert() const
 {
     const RenderObject* renderer = this;
     while (!renderer->node())
         renderer = renderer->parent();
     return renderer->node()->isInert();
 }
 
+// touch-action applies to all elements with both width AND height properties.
+// According to the CSS Box Model Spec (http://dev.w3.org/csswg/css-box/#the-width-and-height-properties)
+// width applies to all elements but non-replaced inline elements, table rows, and row groups and
+// height applies to all elements but non-replaced inline elements, table columns, and column groups.
+bool RenderObject::visibleForTouchAction() const
+{
+    if (isInline() && !isReplaced())
+        return false;
+    if (isTableRow() || isRenderTableCol())
+        return false;
+
+    return true;
+}
+
 void RenderObject::imageChanged(ImageResource* image, const IntRect* rect)
 {
     imageChanged(static_cast<WrappedImagePtr>(image), rect);
 }
 
 Element* RenderObject::offsetParent() const
 {
     if (isRoot() || isBody())
         return 0;
 
@@ skipping 199 matching lines @@
 {
     if (object1) {
         const WebCore::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif