Remove the concept of document.documentElement

sky/engine/core/css/resolver/StyleBuilderCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
@@ skipping 136 matching lines @@
             }
         }
     } else {
         state.style()->setCursor(*toCSSPrimitiveValue(value));
     }
 }
 
 void StyleBuilderFunctions::applyValueCSSPropertyDirection(StyleResolverState& state, CSSValue* value)
 {
     state.style()->setDirection(*toCSSPrimitiveValue(value));
-    Element* element = state.element();
-    if (element && element == element->document().documentElement())
-        element->document().setDirectionSetOnDocumentElement(true);
 }
 
 void StyleBuilderFunctions::applyInitialCSSPropertyFontFamily(StyleResolverState& state)
 {
     state.fontBuilder().setFontFamilyInitial();
 }
 
 void StyleBuilderFunctions::applyInheritCSSPropertyFontFamily(StyleResolverState& state)
 {
     state.fontBuilder().setFontFamilyInherit(state.parentFontDescription());
@@ skipping 656 matching lines @@
         state.style()->setPerspective(perspectiveValue);
 }
 
 void StyleBuilderFunctions::applyValueCSSPropertyWebkitTextOrientation(StyleResolverState& state, CSSValue* value)
 {
     if (value->isPrimitiveValue())
         state.setTextOrientation(*toCSSPrimitiveValue(value));
 }
 
 } // namespace blink