Support style invalidation for ::content.

Source/core/css/invalidation/DescendantInvalidationSet.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 37 matching lines @@
 
 void DescendantInvalidationSet::cacheTracingFlag()
 {
     s_tracingEnabled = TRACE_EVENT_API_GET_CATEGORY_ENABLED(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.invalidationTracking"));
 }
 
 DescendantInvalidationSet::DescendantInvalidationSet()
     : m_allDescendantsMightBeInvalid(false)
     , m_customPseudoInvalid(false)
     , m_treeBoundaryCrossing(false)
+    , m_insertionPointCrossing(false)
 {
 }
 
 bool DescendantInvalidationSet::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, element.tagQName().localName());
@@ skipping 37 matching lines @@
         setWholeSubtreeInvalid();
         return;
     }
 
     if (other.customPseudoInvalid())
         setCustomPseudoInvalid();
 
     if (other.treeBoundaryCrossing())
         setTreeBoundaryCrossing();
 
+    if (other.insertionPointCrossing())
+        setInsertionPointCrossing();
+
     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 64 matching lines @@
     ensureAttributeSet().add(attribute);
 }
 
 void DescendantInvalidationSet::setWholeSubtreeInvalid()
 {
     if (m_allDescendantsMightBeInvalid)
         return;
 
     m_allDescendantsMightBeInvalid = true;
     m_treeBoundaryCrossing = false;
+    m_insertionPointCrossing = false;
     m_classes = nullptr;
     m_ids = nullptr;
     m_tagNames = nullptr;
     m_attributes = nullptr;
 }
 
 void DescendantInvalidationSet::trace(Visitor* visitor)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_classes);
     visitor->trace(m_ids);
     visitor->trace(m_tagNames);
     visitor->trace(m_attributes);
 #endif
 }
 
 void DescendantInvalidationSet::toTracedValue(TracedValue* value) const
 {
     value->beginDictionary();
 
     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_ids) {
         value->beginArray("ids");
         for (const auto& id : *m_ids)
             value->pushString(id);
         value->endArray();
     }
 
     if (m_classes) {
         value->beginArray("classes");
@@ skipping 22 matching lines @@
 #ifndef NDEBUG
 void DescendantInvalidationSet::show() const
 {
     RefPtr<TracedValue> value = TracedValue::create();
     toTracedValue(value.get());
     fprintf(stderr, "%s\n", value->asTraceFormat().ascii().data());
 }
 #endif // NDEBUG
 
 } // namespace blink