Rename StyleSheetCollections to StyleEngine.

Source/core/css/InspectorCSSOMWrappers.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 15 matching lines @@
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class CSSStyleRule;
 class CSSStyleSheet;
 class StyleRule;
-class StyleSheetCollections;
+class StyleEngine;
 class StyleSheetContents;
 
 class InspectorCSSOMWrappers {
 public:
     // WARNING. This will construct CSSOM wrappers for all style rules and cache them in a map for significant memory cost.
     // It is here to support inspector. Don't use for any regular engine functions.
-    CSSStyleRule* getWrapperForRuleInSheets(StyleRule*, StyleSheetCollections*);
+    CSSStyleRule* getWrapperForRuleInSheets(StyleRule*, StyleEngine*);
     void collectFromStyleSheetIfNeeded(CSSStyleSheet*);
     void reset();
 
 private:
     template <class ListType>
     void collect(ListType*);
 
     void collectFromStyleSheetContents(HashSet<RefPtr<CSSStyleSheet> >& sheetWrapperSet, StyleSheetContents*);
     void collectFromStyleSheets(const Vector<RefPtr<CSSStyleSheet> >&);
-    void collectFromStyleSheetCollections(StyleSheetCollections*);
+    void collectFromStyleEngine(StyleEngine*);
 
     HashMap<StyleRule*, RefPtr<CSSStyleRule> > m_styleRuleToCSSOMWrapperMap;
     HashSet<RefPtr<CSSStyleSheet> > m_styleSheetCSSOMWrapperSet;
 };
 
 } // namespace WebCore
 
 #endif // InspectorCSSOMWrappers_h