[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/core/css/StyleResolver.cpp

 /*
  * 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.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 700 matching lines @@
     if (!ruleSet)
         return false;
 
     ElementRuleCollector collector(this, m_state);
     return collector.hasAnyMatchingRules(ruleSet);
 }
 
 bool StyleResolver::canShareStyleWithControl(StyledElement* element) const
 {
     const State& state = m_state;
-    HTMLInputElement* thisInputElement = element->toInputElement();
-    HTMLInputElement* otherInputElement = state.element()->toInputElement();
+    Handle<HTMLInputElement> thisInputElement = element->toInputElement();
+    Handle<HTMLInputElement> otherInputElement = state.element()->toInputElement();
 
     if (!thisInputElement || !otherInputElement)
         return false;
 
     if (thisInputElement->elementData() != otherInputElement->elementData()) {
         if (thisInputElement->fastGetAttribute(typeAttr) != otherInputElement->fastGetAttribute(typeAttr))
             return false;
         if (thisInputElement->fastGetAttribute(readonlyAttr) != otherInputElement->fastGetAttribute(readonlyAttr))
             return false;
     }
@@ skipping 3944 matching lines @@
     info.addMember(m_state, "state");
 
     // FIXME: move this to a place where it would be called only once?
     info.addMember(CSSDefaultStyleSheets::defaultStyle, "defaultStyle");
     info.addMember(CSSDefaultStyleSheets::defaultQuirksStyle, "defaultQuirksStyle");
     info.addMember(CSSDefaultStyleSheets::defaultPrintStyle,"defaultPrintStyle");
     info.addMember(CSSDefaultStyleSheets::defaultViewSourceStyle, "defaultViewSourceStyle");
 }
 
 } // namespace WebCore