Add forEach() to CSSVariablesMap

Source/core/css/PropertySetCSSStyleDeclaration.h

 /*
  * Copyright (C) 2012 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 54 matching lines @@
     virtual void setCssText(const String&, ExceptionCode&) OVERRIDE;
     virtual PassRefPtr<CSSValue> getPropertyCSSValueInternal(CSSPropertyID) OVERRIDE;
     virtual String getPropertyValueInternal(CSSPropertyID) OVERRIDE;
     virtual void setPropertyInternal(CSSPropertyID, const String& value, bool important, ExceptionCode&) OVERRIDE;
 
     virtual unsigned variableCount() const OVERRIDE;
     virtual String variableValue(const AtomicString& name) const OVERRIDE;
     virtual void setVariableValue(const AtomicString& name, const String& value, ExceptionCode&) OVERRIDE;
     virtual bool removeVariable(const AtomicString& name) OVERRIDE;
     virtual void clearVariables(ExceptionCode&) OVERRIDE;
+    virtual PassRefPtr<CSSVariablesIterator> variablesIterator() const OVERRIDE;
 
     virtual bool cssPropertyMatches(CSSPropertyID, const CSSValue*) const OVERRIDE;
     virtual PassRefPtr<MutableStylePropertySet> copyProperties() const OVERRIDE;
 
     CSSValue* cloneAndCacheForCSSOM(CSSValue*);
 
 protected:
     enum MutationType { NoChanges, PropertyChanged };
     virtual void willMutate() { }
     virtual void didMutate(MutationType) { }
@@ skipping 47 matching lines @@
     virtual void clearParentElement() OVERRIDE { m_parentElement = 0; }
 
     virtual void didMutate(MutationType) OVERRIDE;
 
     Element* m_parentElement;
 };
 
 } // namespace WebCore
 
 #endif