Add a WebDocument::watchCssSelectors(selectors)

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 77 matching lines @@
     void setChildrenAffectedByLastChildRules(bool value) { m_childrenAffectedByLastChildRules = value; }
     bool childrenAffectedByDirectAdjacentRules() const { return m_childrenAffectedByDirectAdjacentRules; }
     void setChildrenAffectedByDirectAdjacentRules(bool value) { m_childrenAffectedByDirectAdjacentRules = value; }
     bool childrenAffectedByForwardPositionalRules() const { return m_childrenAffectedByForwardPositionalRules; }
     void setChildrenAffectedByForwardPositionalRules(bool value) { m_childrenAffectedByForwardPositionalRules = value; }
     bool childrenAffectedByBackwardPositionalRules() const { return m_childrenAffectedByBackwardPositionalRules; }
     void setChildrenAffectedByBackwardPositionalRules(bool value) { m_childrenAffectedByBackwardPositionalRules = value; }
     unsigned childIndex() const { return m_childIndex; }
     void setChildIndex(unsigned index) { m_childIndex = index; }
 
+    bool renderStyleWatchedSelectorsRepresentedInSelectorWatch() const { return m_renderStyleWatchedSelectorsRepresentedInSelectorWatch; }
+    void setRenderStyleWatchedSelectorsRepresentedInSelectorWatch(bool value) { m_renderStyleWatchedSelectorsRepresentedInSelectorWatch = value; }
+
     void clearShadow() { m_shadow = nullptr; }
     ElementShadow* shadow() const { return m_shadow.get(); }
     ElementShadow* ensureShadow()
     {
         if (!m_shadow)
             m_shadow = ElementShadow::create();
         return m_shadow.get();
     }
 
     NamedNodeMap* attributeMap() const { return m_attributeMap.get(); }
@@ skipping 52 matching lines @@
     unsigned m_childrenAffectedByDrag : 1;
     // Bits for dynamic child matching.
     // We optimize for :first-child and :last-child. The other positional child selectors like nth-child or
     // *-child-of-type, we will just give up and re-evaluate whenever children change at all.
     unsigned m_childrenAffectedByFirstChildRules : 1;
     unsigned m_childrenAffectedByLastChildRules : 1;
     unsigned m_childrenAffectedByDirectAdjacentRules : 1;
     unsigned m_childrenAffectedByForwardPositionalRules : 1;
     unsigned m_childrenAffectedByBackwardPositionalRules : 1;
 
+    unsigned m_renderStyleWatchedSelectorsRepresentedInSelectorWatch : 1;

[esprehn, 2013/09/04 06:08:28]

There's no free bitfields on RenderStyle?

[Jeffrey Yasskin, 2013/09/12 22:09:59]

This was tracking whether a RenderStyle had been propagated to *this* element,
which wasn't appropriate to put on RenderStyle. However, with the move to
recalcOwnStyle, it's now unnecessary and removed.

+
     unsigned m_isInsideRegion : 1;
     RegionOversetState m_regionOversetState;
 
     LayoutSize m_minimumSizeForResizing;
     IntSize m_savedLayerScrollOffset;
     RefPtr<RenderStyle> m_computedStyle;
 
     OwnPtr<DatasetDOMStringMap> m_dataset;
     OwnPtr<ClassList> m_classList;
     OwnPtr<ElementShadow> m_shadow;
@@ skipping 26 matching lines @@
     , m_isInTopLayer(false)
     , m_hasPendingResources(false)
     , m_childrenAffectedByHover(false)
     , m_childrenAffectedByActive(false)
     , m_childrenAffectedByDrag(false)
     , m_childrenAffectedByFirstChildRules(false)
     , m_childrenAffectedByLastChildRules(false)
     , m_childrenAffectedByDirectAdjacentRules(false)
     , m_childrenAffectedByForwardPositionalRules(false)
     , m_childrenAffectedByBackwardPositionalRules(false)
+    , m_renderStyleWatchedSelectorsRepresentedInSelectorWatch(false)
     , m_isInsideRegion(false)
     , m_regionOversetState(RegionUndefined)
     , m_minimumSizeForResizing(defaultMinimumSizeForResizing())
 {
 }
 
 inline ElementRareData::~ElementRareData()
 {
     ASSERT(!m_shadow);
     ASSERT(!m_generatedBefore);
@@ skipping 65 matching lines @@
     setChildrenAffectedByFirstChildRules(false);
     setChildrenAffectedByLastChildRules(false);
     setChildrenAffectedByDirectAdjacentRules(false);
     setChildrenAffectedByForwardPositionalRules(false);
     setChildrenAffectedByBackwardPositionalRules(false);
 }
 
 } // namespace
 
 #endif // ElementRareData_h