Add forEach() to CSSVariablesMap

Source/core/css/CSSComputedStyleDeclaration.h

Index: Source/core/css/CSSComputedStyleDeclaration.h
diff --git a/Source/core/css/CSSComputedStyleDeclaration.h b/Source/core/css/CSSComputedStyleDeclaration.h
index 6116b50d2b46c1099f5b1245253533ed98b74071..ef546cd02697f813a94f05040bb010a06ff2aaae 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.h
+++ b/Source/core/css/CSSComputedStyleDeclaration.h
@@ -49,6 +49,22 @@ class StylePropertyShorthand;
 enum EUpdateLayout { DoNotUpdateLayout = false, UpdateLayout = true };
 
 class CSSComputedStyleDeclaration : public CSSStyleDeclaration {
+private:
+    class ComputedCSSVariablesIterator : public CSSVariablesIterator {
+    public:
+        virtual ~ComputedCSSVariablesIterator() { }
+        static PassRefPtr<ComputedCSSVariablesIterator> create(const HashMap<AtomicString, String>* variableMap) { return adoptRef(new ComputedCSSVariablesIterator(variableMap)); }
+    private:
+        explicit ComputedCSSVariablesIterator(const HashMap<AtomicString, String>* variableMap);
+        virtual void advance() OVERRIDE;
+        virtual bool atEnd() const OVERRIDE { return m_it == m_end; }
+        virtual AtomicString name() const OVERRIDE;
+        virtual String value() const OVERRIDE;
+        bool m_active;
+        HashMap<AtomicString, String>::const_iterator m_it;

[esprehn, 2013/09/12 01:13:42]

A typedef HashMap<AtomicString, String> VariablesMap would make this nicer.

[alancutter (OOO until 2018), 2013/09/13 03:06:14]

Done.

+        HashMap<AtomicString, String>::const_iterator m_end;
+    };
+
 public:
     static PassRefPtr<CSSComputedStyleDeclaration> create(PassRefPtr<Node> node, bool allowVisitedStyle = false, const String& pseudoElementName = String())
     {
@@ -106,6 +122,7 @@ private:
     virtual void setVariableValue(const AtomicString& name, const String& value, ExceptionState&) OVERRIDE;
     virtual bool removeVariable(const AtomicString& name) OVERRIDE;
     virtual void clearVariables(ExceptionState&) OVERRIDE;
+    virtual PassRefPtr<CSSVariablesIterator> variablesIterator() const OVERRIDE { return ComputedCSSVariablesIterator::create(variableMap()); }
 
     virtual bool cssPropertyMatches(CSSPropertyID, const CSSValue*) const OVERRIDE;