Convert first letter into a pseudo element.

Source/core/dom/Element.h

 /*
  * 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)
  * Copyright (C) 2003-2011, 2013, 2014 Apple Inc. All rights reserved.
  *
  * 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
@@ skipping 537 matching lines @@
 
     void inlineStyleChanged();
     PropertySetCSSStyleDeclaration* inlineStyleCSSOMWrapper();
     void setInlineStyleFromString(const AtomicString&);
 
     StyleRecalcChange recalcOwnStyle(StyleRecalcChange);
 
     inline void checkForEmptyStyleChange();
 
     void updatePseudoElement(PseudoId, StyleRecalcChange);
+    bool updateFirstLetter(Element*);
 
     inline void createPseudoElementIfNeeded(PseudoId);
 
     // FIXME: Everyone should allow author shadows.
     virtual bool areAuthorShadowsAllowed() const { return true; }
     virtual void didAddUserAgentShadowRoot(ShadowRoot&) { }
     virtual bool alwaysCreateUserAgentShadowRoot() const { return false; }
 
     // FIXME: Remove the need for Attr to call willModifyAttribute/didModifyAttribute.
     friend class Attr;
@@ skipping 295 matching lines @@
     static PassRefPtrWillBeRawPtr<T> create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
     PassRefPtrWillBeRawPtr<T> T::create(const QualifiedName& tagName, Document& document) \
     { \
         return adoptRefWillBeNoop(new T(tagName, document)); \
     }
 
 } // namespace
 
 #endif // Element_h