Make ::first-line invalidation work when added or removed.

third_party/WebKit/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 885 matching lines @@
                             const AtomicString& value,
                             SynchronizationOfLazyAttribute);
   void appendAttributeInternal(const QualifiedName&,
                                const AtomicString& value,
                                SynchronizationOfLazyAttribute);
   void removeAttributeInternal(size_t index, SynchronizationOfLazyAttribute);
   void attributeChangedFromParserOrByCloning(const QualifiedName&,
                                              const AtomicString&,
                                              AttributeModificationReason);
 
-  void pseudoStyleCacheIsInvalid(const ComputedStyle* currentStyle,
-                                 ComputedStyle* newStyle);
-
   void cancelFocusAppearanceUpdate();
 
   const ComputedStyle* virtualEnsureComputedStyle(
       PseudoId pseudoElementSpecifier = PseudoIdNone) override {
     return ensureComputedStyle(pseudoElementSpecifier);
   }
 
   inline void updateCallbackSelectors(const ComputedStyle* oldStyle,
                                       const ComputedStyle* newStyle);
   inline void removeCallbackSelectors();
@@ skipping 285 matching lines @@
 #define DECLARE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
   static T* create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T)                     \
   T* T::create(const QualifiedName& tagName, Document& document) { \
     return new T(tagName, document);                               \
   }
 
 }  // namespace blink
 
 #endif  // Element_h