List marker pseudo elements.

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 142 matching lines @@
     OwnPtrWillBeMember<ElementShadow> m_shadow;
     OwnPtrWillBeMember<NamedNodeMap> m_attributeMap;
     OwnPtrWillBeMember<WillBeHeapVector<RefPtrWillBeMember<Attr>>> m_attrNodeList;
     OwnPtrWillBeMember<InputMethodContext> m_inputMethodContext;
     OwnPtrWillBeMember<ElementAnimations> m_elementAnimations;
     OwnPtrWillBeMember<InlineCSSStyleDeclaration> m_cssomWrapper;
 
     RefPtr<ComputedStyle> m_computedStyle;
     RefPtrWillBeMember<CustomElementDefinition> m_customElementDefinition;
 
+    RefPtrWillBeMember<PseudoElement> m_marker;

[esprehn, 2015/04/22 07:45:45]

We really probably need to introduce a PseudoElementData object that holds all
these ptrs, we're making ElementRareData really big for something that's pretty
rare now.

[dsinclair, 2015/04/22 20:00:38]

File crbug.com/479745 to move this to a PseudoElementData object.

     RefPtrWillBeMember<PseudoElement> m_generatedBefore;
     RefPtrWillBeMember<PseudoElement> m_generatedAfter;
     RefPtrWillBeMember<PseudoElement> m_generatedFirstLetter;
     RefPtrWillBeMember<PseudoElement> m_backdrop;
 
     explicit ElementRareData(LayoutObject*);
 };
 
 inline LayoutSize defaultMinimumSizeForResizing()
 {
     return LayoutSize(LayoutUnit::max(), LayoutUnit::max());
 }
 
 inline ElementRareData::ElementRareData(LayoutObject* renderer)
     : NodeRareData(renderer)
     , m_tabindex(0)
     , m_tabStop(true)
     , m_proxyCount(0)
     , m_minimumSizeForResizing(defaultMinimumSizeForResizing())
 {
     m_isElementRareData = true;
 }
 
 inline ElementRareData::~ElementRareData()
 {
 #if !ENABLE(OILPAN)
     ASSERT(!m_shadow);
 #endif
+    ASSERT(!m_marker);
     ASSERT(!m_generatedBefore);
     ASSERT(!m_generatedAfter);
     ASSERT(!m_generatedFirstLetter);
     ASSERT(!m_backdrop);
 }
 
 inline bool ElementRareData::hasPseudoElements() const
 {
-    return m_generatedBefore || m_generatedAfter || m_backdrop || m_generatedFirstLetter;
+    return m_generatedBefore || m_generatedAfter || m_backdrop || m_generatedFirstLetter || m_marker;
 }
 
 inline void ElementRareData::clearPseudoElements()
 {
     setPseudoElement(BEFORE, nullptr);
     setPseudoElement(AFTER, nullptr);
     setPseudoElement(BACKDROP, nullptr);
+    setPseudoElement(MARKER, nullptr);
     setPseudoElement(FIRST_LETTER, nullptr);
 }
 
 inline void ElementRareData::setPseudoElement(PseudoId pseudoId, PassRefPtrWillBeRawPtr<PseudoElement> element)
 {
     switch (pseudoId) {
+    case MARKER:
+        if (m_marker)
+            m_marker->dispose();
+        m_marker = element;
+        break;
     case BEFORE:
         if (m_generatedBefore)
             m_generatedBefore->dispose();
         m_generatedBefore = element;
         break;
     case AFTER:
         if (m_generatedAfter)
             m_generatedAfter->dispose();
         m_generatedAfter = element;
         break;
     case BACKDROP:
         if (m_backdrop)
             m_backdrop->dispose();
         m_backdrop = element;
         break;
     case FIRST_LETTER:
         if (m_generatedFirstLetter)
             m_generatedFirstLetter->dispose();
         m_generatedFirstLetter = element;
         break;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 inline PseudoElement* ElementRareData::pseudoElement(PseudoId pseudoId) const
 {
     switch (pseudoId) {
+    case MARKER:
+        return m_marker.get();
     case BEFORE:
         return m_generatedBefore.get();
     case AFTER:
         return m_generatedAfter.get();
     case BACKDROP:
         return m_backdrop.get();
     case FIRST_LETTER:
         return m_generatedFirstLetter.get();
     default:
         return 0;
     }
 }
 
 } // namespace
 
 #endif // ElementRareData_h