Schedule sibling invalidation sets for sibling insert/remove.

third_party/WebKit/Source/core/dom/shadow/ShadowRoot.cpp

 /*
  * Copyright (C) 2011 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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 132 matching lines @@
     recalcChildStyle(change);
     clearChildNeedsStyleRecalc();
 }
 
 void ShadowRoot::attach(const AttachContext& context)
 {
     StyleSharingDepthScope sharingScope(*this);
     DocumentFragment::attach(context);
 }
 
+void ShadowRoot::detach(const AttachContext& context)
+{
+    if (context.clearInvalidation)
+        document().styleEngine().styleInvalidator().clearInvalidation(*this);
+    DocumentFragment::detach(context);
+}
+
 Node::InsertionNotificationRequest ShadowRoot::insertedInto(ContainerNode* insertionPoint)
 {
     DocumentFragment::insertedInto(insertionPoint);
 
     if (!insertionPoint->inShadowIncludingDocument() || !isOldest())
         return InsertionDone;
 
     // FIXME: When parsing <video controls>, insertedInto() is called many times without invoking removedFrom.
     // For now, we check m_registeredWithParentShadowroot. We would like to DCHECK(!m_registeredShadowRoot) here.
     // https://bugs.webkit.org/show_bug.cig?id=101316
@@ skipping 13 matching lines @@
     if (insertionPoint->inShadowIncludingDocument()) {
         document().styleEngine().shadowRootRemovedFromDocument(this);
         if (m_registeredWithParentShadowRoot) {
             ShadowRoot* root = host().containingShadowRoot();
             if (!root)
                 root = insertionPoint->containingShadowRoot();
             if (root)
                 root->removeChildShadowRoot();
             m_registeredWithParentShadowRoot = false;
         }
+        if (needsStyleInvalidation())
+            document().styleEngine().styleInvalidator().clearInvalidation(*this);
     }
 
     DocumentFragment::removedFrom(insertionPoint);
 }
 
 void ShadowRoot::childrenChanged(const ChildrenChange& change)
 {
     ContainerNode::childrenChanged(change);
 
     if (change.isChildElementChange())
-        checkForSiblingStyleChanges(change.type == ElementRemoved ? SiblingElementRemoved : SiblingElementInserted, change.siblingBeforeChange, change.siblingAfterChange);
+        checkForSiblingStyleChanges(change.type == ElementRemoved ? SiblingElementRemoved : SiblingElementInserted, change.siblingChanged, change.siblingBeforeChange, change.siblingAfterChange);
 
     if (InsertionPoint* point = shadowInsertionPointOfYoungerShadowRoot()) {
         if (ShadowRoot* root = point->containingShadowRoot())
             root->owner()->setNeedsDistributionRecalc();
     }
 }
 
 void ShadowRoot::registerScopedHTMLStyleChild()
 {
     ++m_numberOfStyles;
@@ skipping 119 matching lines @@
         ostream << "ShadowRootType::Open";
         break;
     case ShadowRootType::Closed:
         ostream << "ShadowRootType::Closed";
         break;
     }
     return ostream;
 }
 
 } // namespace blink