Store features in the ScopedStyleResoolver.

sky/engine/core/dom/StyleEngine.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 186 matching lines @@
 void StyleEngine::removeSheet(StyleSheetContents* contents)
 {
     HashMap<StyleSheetContents*, AtomicString>::iterator it = m_sheetToTextCache.find(contents);
     if (it == m_sheetToTextCache.end())
         return;
 
     m_textToSheetCache.remove(it->value);
     m_sheetToTextCache.remove(contents);
 }
 
-// TODO(esprehn): This walks the entire document to collect features, instead
-// we should store features per scope and get rid of the global set.
-static void collectFeatures(TreeScope& scope, RuleFeatureSet& features, HashSet<const StyleSheetContents*> visitedSharedStyleSheetContents)
-{
-    scope.scopedStyleResolver().collectFeaturesTo(features, visitedSharedStyleSheetContents);
-    for (Element* element = ElementTraversal::firstWithin(scope.rootNode()); element; element = ElementTraversal::next(*element, &scope.rootNode())) {
-        if (ShadowRoot* root = element->shadowRoot())
-            collectFeatures(*root, features, visitedSharedStyleSheetContents);
-    }
-}
-
-void StyleEngine::collectScopedStyleFeaturesTo(RuleFeatureSet& features) const
-{
-    HashSet<const StyleSheetContents*> visitedSharedStyleSheetContents;
-    collectFeatures(*m_document, features, visitedSharedStyleSheetContents);
-}
-
 void StyleEngine::fontsNeedUpdate(CSSFontSelector*)
 {
     if (m_resolver)
         m_resolver->invalidateMatchedPropertiesCache();
     m_document->setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
 }