Turn StyleSharing to 11.

sky/engine/core/dom/shadow/ElementShadow.cpp

 /*
  * Copyright (C) 2012 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 190 matching lines @@
         return;
     m_needsDistributionRecalc = true;
     host()->markAncestorsWithChildNeedsDistributionRecalc();
     clearDistribution();
 }
 
 bool ElementShadow::hasSameStyles(const ElementShadow* other) const
 {
     ShadowRoot* root = m_shadowRoot;
     ShadowRoot* otherRoot = other->shadowRoot();
-    if (root || otherRoot) {
-        if (!root || !otherRoot)
-            return false;
-
-        StyleSheetList* list = root->styleSheets();
-        StyleSheetList* otherList = otherRoot->styleSheets();
-
-        if (list->length() != otherList->length())
-            return false;
-
-        for (size_t i = 0; i < list->length(); i++) {
-            if (list->item(i)->contents() != otherList->item(i)->contents())
-                return false;
-        }
-    }
-
-    return true;
+    if (!root && !otherRoot)
+        return true;
+    if (root && otherRoot)
+        return root->hasSameStyles(*otherRoot);
+    return false;
 }
 
 const InsertionPoint* ElementShadow::finalDestinationInsertionPointFor(const Node* key) const
 {
     ASSERT(key && !key->document().childNeedsDistributionRecalc());
     NodeToDestinationInsertionPoints::const_iterator it = m_nodeToInsertionPoints.find(key);
     return it == m_nodeToInsertionPoints.end() ? 0: it->value.last().get();
 }
 
 const DestinationInsertionPoints* ElementShadow::destinationInsertionPointsFor(const Node* key) const
@@ skipping 66 matching lines @@
     }
     setNeedsDistributionRecalc();
 }
 
 void ElementShadow::clearDistribution()
 {
     m_nodeToInsertionPoints.clear();
 }
 
 } // namespace