Remove SiblingRuleHelper

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 13 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/dom/shadow/ShadowRoot.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/css/StyleSheetList.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/ElementTraversal.h"
-#include "core/dom/SiblingRuleHelper.h"
 #include "core/dom/StyleEngine.h"
 #include "core/dom/Text.h"
 #include "core/dom/shadow/ElementShadow.h"
 #include "core/dom/shadow/InsertionPoint.h"
 #include "core/dom/shadow/ShadowRootRareData.h"
 #include "core/editing/markup.h"
 #include "core/html/HTMLShadowElement.h"
 #include "public/platform/Platform.h"
 
 namespace WebCore {
@@ skipping 95 matching lines @@
 {
     // ShadowRoot doesn't support custom callbacks.
     ASSERT(!hasCustomStyleCallbacks());
 
     StyleResolver& styleResolver = document().ensureStyleResolver();
     styleResolver.pushParentShadowRoot(*this);
 
     if (styleChangeType() >= SubtreeStyleChange)
         change = Force;
 
-    if (change < Force && childNeedsStyleRecalc())
-        SiblingRuleHelper(this).checkForChildrenAdjacentRuleChanges();
+    if (change < Force && hasRareData() && childNeedsStyleRecalc())
+        checkForChildrenAdjacentRuleChanges();
 
     // There's no style to update so just calling recalcStyle means we're updated.
     clearNeedsStyleRecalc();
 
     // FIXME: This doesn't handle :hover + div properly like Element::recalcStyle does.
     Text* lastTextNode = 0;
     for (Node* child = lastChild(); child; child = child->previousSibling()) {
         if (child->isTextNode()) {
             toText(child)->recalcTextStyle(change, lastTextNode);
             lastTextNode = toText(child);
@@ skipping 214 matching lines @@
 }
 
 StyleSheetList* ShadowRoot::styleSheets()
 {
     if (!ensureShadowRootRareData()->styleSheets())
         m_shadowRootRareData->setStyleSheets(StyleSheetList::create(this));
 
     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);
-}
-
-}