Revert of [Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/core/dom/ElementData.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 32 matching lines @@
     void* pointers[2];
 };
 
 static_assert(sizeof(ElementData) == sizeof(SameSizeAsElementData), "ElementData should stay small");
 
 static size_t sizeForShareableElementDataWithAttributeCount(unsigned count)
 {
     return sizeof(ShareableElementData) + sizeof(Attribute) * count;
 }
 
-const StylePropertySet* ElementData::inlineStyle() const
-{
-    return m_inlineStyle.get();
-}
-
-const StylePropertySet* ElementData::presentationAttributeStyle() const
-{
-    if (!m_isUnique)
-        return nullptr;
-    return toUniqueElementData(this)->m_presentationAttributeStyle.get();
-}
-
 ElementData::ElementData()
     : m_isUnique(true)
     , m_arraySize(0)
     , m_presentationAttributeStyleIsDirty(false)
     , m_styleAttributeIsDirty(false)
     , m_animatedSVGAttributesAreDirty(false)
 {
 }
 
 ElementData::ElementData(unsigned arraySize)
@@ skipping 149 matching lines @@
     return adoptRefWillBeNoop(new (slot) ShareableElementData(*this));
 }
 
 DEFINE_TRACE_AFTER_DISPATCH(UniqueElementData)
 {
     visitor->trace(m_presentationAttributeStyle);
     ElementData::traceAfterDispatch(visitor);
 }
 
 } // namespace blink