Remove the concept of document.documentElement

sky/engine/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 353 matching lines @@
 
     if (RenderBox* renderer = renderBox())
         return roundToInt(renderer->clientTop());
     return 0;
 }
 
 int Element::clientWidth()
 {
     document().updateLayout();
 
-    // FIXME(sky): Can we just use getBoundingClientRect() instead?
-    if (document().documentElement() == this) {
-        if (FrameView* view = document().view())
-            return view->layoutSize().width();
-    }
-
     if (RenderBox* renderer = renderBox())
         return renderer->pixelSnappedClientWidth();
     return 0;
 }
 
 int Element::clientHeight()
 {
     document().updateLayout();
 
-    // FIXME(sky): Can we just use getBoundingClientRect() instead?
-    if (document().documentElement() == this) {
-        if (FrameView* view = document().view())
-            return view->layoutSize().height();
-    }
-
     if (RenderBox* renderer = renderBox())
         return renderer->pixelSnappedClientHeight();
     return 0;
 }
 
 PassRefPtr<ClientRectList> Element::getClientRects()
 {
     document().updateLayout();
 
     RenderBoxModelObject* renderBoxModelObject = this->renderBoxModelObject();
@@ skipping 1181 matching lines @@
         return false;
     if (treeScope().scopedStyleResolver().hasSelectorForId(idValue))
         return true;
     // Host rules could also have effects.
     if (ShadowRoot* shadowRoot = this->shadowRoot())
         return shadowRoot->scopedStyleResolver().hasSelectorForId(idValue);
     return false;
 }
 
 } // namespace blink