Remove ScopedStyleResolver::treeScopeFor.

sky/engine/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 148 matching lines @@
     for (unsigned i = 0; i < styleSheets.size(); ++i)
         m_pendingStyleSheets.remove(styleSheets[i].get());
 }
 
 void StyleResolver::appendCSSStyleSheet(CSSStyleSheet* cssSheet)
 {
     ASSERT(cssSheet);
     if (cssSheet->mediaQueries() && !m_medium->eval(cssSheet->mediaQueries(), &m_viewportDependentMediaQueryResults))
         return;
 
-    TreeScope* treeScope = ScopedStyleResolver::treeScopeFor(document(), cssSheet);
-    if (!treeScope)
+    Node* ownerNode = cssSheet->ownerNode();
+    if (!ownerNode)
         return;
 
-    ScopedStyleResolver& resolver = treeScope->ensureScopedStyleResolver();
+    TreeScope& treeScope = ownerNode->treeScope();
+    ScopedStyleResolver& resolver = treeScope.ensureScopedStyleResolver();
     document().styleEngine()->addScopedStyleResolver(&resolver);
     resolver.addRulesFromSheet(cssSheet, *m_medium, this);
 }
 
 void StyleResolver::appendPendingAuthorStyleSheets()
 {
     for (ListHashSet<RawPtr<CSSStyleSheet>, 16>::iterator it = m_pendingStyleSheets.begin(); it != m_pendingStyleSheets.end(); ++it)
         appendCSSStyleSheet(*it);
 
     m_pendingStyleSheets.clear();
@@ skipping 791 matching lines @@
 bool StyleResolver::mediaQueryAffectedByViewportChange() const
 {
     for (unsigned i = 0; i < m_viewportDependentMediaQueryResults.size(); ++i) {
         if (m_medium->eval(m_viewportDependentMediaQueryResults[i]->expression()) != m_viewportDependentMediaQueryResults[i]->result())
             return true;
     }
     return false;
 }
 
 } // namespace blink