Introduce few const getters for dom classes

third_party/WebKit/Source/core/dom/ElementRareData.h

 /*
  * Copyright (C) 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 David Smith <catfish.man@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 52 matching lines @@
         setElementFlag(TabIndexWasSetExplicitly, true);
     }
 
     void clearTabIndexExplicitly()
     {
         m_tabindex = 0;
         clearElementFlag(TabIndexWasSetExplicitly);
     }
 
     CSSStyleDeclaration& ensureInlineCSSStyleDeclaration(Element* ownerElement);
+    CSSStyleDeclaration* inlineCSSStyleDeclaration() const;
 
     void clearShadow() { m_shadow = nullptr; }
     ElementShadow* shadow() const { return m_shadow.get(); }
     ElementShadow& ensureShadow()
     {
         if (!m_shadow)
             m_shadow = ElementShadow::create();
         return *m_shadow;
     }
 
@@ skipping 184 matching lines @@
 inline CompositorProxiedPropertySet& ElementRareData::ensureCompositorProxiedPropertySet()
 {
     if (!m_proxiedProperties)
         m_proxiedProperties = CompositorProxiedPropertySet::create();
     return *m_proxiedProperties;
 }
 
 } // namespace blink
 
 #endif // ElementRareData_h