RuleSet invalidations on single feature only, including tags.

third_party/WebKit/Source/core/css/invalidation/InvalidationSet.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 44 matching lines @@
 }
 
 InvalidationSet::InvalidationSet(InvalidationType type)
     : m_refCount(1),
       m_type(type),
       m_allDescendantsMightBeInvalid(false),
       m_invalidatesSelf(false),
       m_customPseudoInvalid(false),
       m_treeBoundaryCrossing(false),
       m_insertionPointCrossing(false),
-      m_invalidatesSlotted(false) {}
+      m_invalidatesSlotted(false),
+      m_appliesToRuleSetInvalidations(false) {}
 
 bool InvalidationSet::invalidatesElement(Element& element) const {
   if (m_allDescendantsMightBeInvalid)
     return true;
 
   if (m_tagNames && m_tagNames->contains(element.tagQName().localName())) {
     TRACE_STYLE_INVALIDATOR_INVALIDATION_SELECTORPART_IF_ENABLED(
         element, InvalidationSetMatchedTagName, *this,
         element.tagQName().localName());
     return true;
@@ skipping 66 matching lines @@
 
   if (other.treeBoundaryCrossing())
     setTreeBoundaryCrossing();
 
   if (other.insertionPointCrossing())
     setInsertionPointCrossing();
 
   if (other.invalidatesSlotted())
     setInvalidatesSlotted();
 
+  if (other.appliesToRuleSetInvalidations())
+    setAppliesToRuleSetInvalidations();
+
   if (other.m_classes) {
     for (const auto& className : *other.m_classes)
       addClass(className);
   }
 
   if (other.m_ids) {
     for (const auto& id : *other.m_ids)
       addId(id);
   }
 
@@ skipping 90 matching lines @@
   if (m_allDescendantsMightBeInvalid)
     value->setBoolean("allDescendantsMightBeInvalid", true);
   if (m_customPseudoInvalid)
     value->setBoolean("customPseudoInvalid", true);
   if (m_treeBoundaryCrossing)
     value->setBoolean("treeBoundaryCrossing", true);
   if (m_insertionPointCrossing)
     value->setBoolean("insertionPointCrossing", true);
   if (m_invalidatesSlotted)
     value->setBoolean("invalidatesSlotted", true);
+  if (m_appliesToRuleSetInvalidations)
+    value->setBoolean("appliesToRuleSetInvalidations", true);
 
   if (m_ids) {
     value->beginArray("ids");
     for (const auto& id : *m_ids)
       value->pushString(id);
     value->endArray();
   }
 
   if (m_classes) {
     value->beginArray("classes");
@@ skipping 41 matching lines @@
   return *m_siblingDescendantInvalidationSet;
 }
 
 DescendantInvalidationSet& SiblingInvalidationSet::ensureDescendants() {
   if (!m_descendantInvalidationSet)
     m_descendantInvalidationSet = DescendantInvalidationSet::create();
   return *m_descendantInvalidationSet;
 }
 
 }  // namespace blink