Recalc sibling styles for forward positional rules on mutations only.

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 393 matching lines @@
     return m_shadowRootRareData->styleSheets();
 }
 
 bool ShadowRoot::childrenSupportStyleSharing() const
 {
     if (!m_shadowRootRareData)
         return false;
     return !m_shadowRootRareData->childrenAffectedByFirstChildRules()
         && !m_shadowRootRareData->childrenAffectedByLastChildRules()
         && !m_shadowRootRareData->childrenAffectedByDirectAdjacentRules()
+        && !m_shadowRootRareData->childrenAffectedByIndirectAdjacentRules()
         && !m_shadowRootRareData->childrenAffectedByForwardPositionalRules()
         && !m_shadowRootRareData->childrenAffectedByBackwardPositionalRules();
 }
 
 bool ShadowRoot::childrenAffectedByPositionalRules() const
 {
     return m_shadowRootRareData && (m_shadowRootRareData->childrenAffectedByForwardPositionalRules() || m_shadowRootRareData->childrenAffectedByBackwardPositionalRules());
 }
 
 bool ShadowRoot::childrenAffectedByFirstChildRules() const
 {
     return m_shadowRootRareData && m_shadowRootRareData->childrenAffectedByFirstChildRules();
 }
 
 bool ShadowRoot::childrenAffectedByLastChildRules() const
 {
     return m_shadowRootRareData && m_shadowRootRareData->childrenAffectedByLastChildRules();
 }
 
 bool ShadowRoot::childrenAffectedByDirectAdjacentRules() const
 {
     return m_shadowRootRareData && m_shadowRootRareData->childrenAffectedByDirectAdjacentRules();
 }
 
+bool ShadowRoot::childrenAffectedByIndirectAdjacentRules() const
+{
+    return m_shadowRootRareData && m_shadowRootRareData->childrenAffectedByIndirectAdjacentRules();
+}
+
 bool ShadowRoot::childrenAffectedByForwardPositionalRules() const
 {
     return m_shadowRootRareData && m_shadowRootRareData->childrenAffectedByForwardPositionalRules();
 }
 
 bool ShadowRoot::childrenAffectedByBackwardPositionalRules() const
 {
     return m_shadowRootRareData && m_shadowRootRareData->childrenAffectedByBackwardPositionalRules();
 }
 
 void ShadowRoot::setChildrenAffectedByForwardPositionalRules()
 {
     ensureShadowRootRareData()->setChildrenAffectedByForwardPositionalRules(true);
 }
 
 void ShadowRoot::setChildrenAffectedByDirectAdjacentRules()
 {
     ensureShadowRootRareData()->setChildrenAffectedByDirectAdjacentRules(true);
 }
 
+void ShadowRoot::setChildrenAffectedByIndirectAdjacentRules()
+{
+    ensureShadowRootRareData()->setChildrenAffectedByIndirectAdjacentRules(true);
+}
+
 void ShadowRoot::setChildrenAffectedByBackwardPositionalRules()
 {
     ensureShadowRootRareData()->setChildrenAffectedByBackwardPositionalRules(true);
 }
 
 void ShadowRoot::setChildrenAffectedByFirstChildRules()
 {
     ensureShadowRootRareData()->setChildrenAffectedByFirstChildRules(true);
 }
 
 void ShadowRoot::setChildrenAffectedByLastChildRules()
 {
     ensureShadowRootRareData()->setChildrenAffectedByLastChildRules(true);
 }
 
 }