Oilpan: Prepare moving inspector script related classes to oilpan.

Source/core/inspector/ScriptArguments.h

Index: Source/core/inspector/ScriptArguments.h
diff --git a/Source/core/inspector/ScriptArguments.h b/Source/core/inspector/ScriptArguments.h
index 9c6ed5a34ad15a0e44f88e131a33c648375f5a94..c2266115547a1ecb3ae09be7bf81fc9b40bcbf67 100644
--- a/Source/core/inspector/ScriptArguments.h
+++ b/Source/core/inspector/ScriptArguments.h
@@ -41,11 +41,10 @@ namespace WebCore {
 
 class ScriptValue;
 
-class ScriptArguments : public RefCounted<ScriptArguments> {
+class ScriptArguments : public RefCountedWillBeGarbageCollectedFinalized<ScriptArguments> {
+    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ScriptArguments);
 public:
-    static PassRefPtr<ScriptArguments> create(ScriptState*, Vector<ScriptValue>& arguments);
-
-    ~ScriptArguments();
+    static PassRefPtrWillBeRawPtr<ScriptArguments> create(ScriptState*, Vector<ScriptValue>& arguments);
 
     const ScriptValue& argumentAt(size_t) const;
     size_t argumentCount() const { return m_arguments.size(); }
@@ -54,6 +53,8 @@ public:
 
     bool getFirstArgumentAsString(WTF::String& result, bool checkForNullOrUndefined = false);
 
+    void trace(Visitor*) { }
+
 private:
     ScriptArguments(ScriptState*, Vector<ScriptValue>& arguments);