Add forEach() to CSSVariablesMap

Source/core/css/CSSVariablesMap.h

Index: Source/core/css/CSSVariablesMap.h
diff --git a/Source/core/css/CSSVariablesMap.h b/Source/core/css/CSSVariablesMap.h
index 5c236953923220715d8ce5c7385611094001fd59..7e729bf4a5940a4330453ae5ceaf78cf394a5429 100644
--- a/Source/core/css/CSSVariablesMap.h
+++ b/Source/core/css/CSSVariablesMap.h
@@ -29,6 +29,7 @@
 #define CSSVariablesMap_h
 
 #include "RuntimeEnabledFeatures.h"
+#include "core/css/CSSVariablesMapForEachCallback.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
@@ -52,6 +53,9 @@ public:
     void set(const AtomicString& name, const String& value, ExceptionState&) const;
     bool remove(const AtomicString& name) const;
     void clear(ExceptionState&) const;
+    void forEach(PassRefPtr<CSSVariablesMapForEachCallback>, ScriptValue* thisArg) const;
+    void forEach(PassRefPtr<CSSVariablesMapForEachCallback>, ScriptValue thisArg) const;

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

When do we pass a ScriptValue by value instead of pointer or reference?

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

Made pointer overload private.
Changed copy parameter to be a reference.

+    void forEach(PassRefPtr<CSSVariablesMapForEachCallback>) const;
 
     void clearStyleDeclaration() { m_styleDeclaration = 0; }