[bindings] Introduce ScriptValue.to<T> to convert to native values.

Source/bindings/core/v8/V8Binding.h

Index: Source/bindings/core/v8/V8Binding.h
diff --git a/Source/bindings/core/v8/V8Binding.h b/Source/bindings/core/v8/V8Binding.h
index 721c9a1167cc9edd9602e22d8084c1c1fefc4b8d..81b41949ba580daf4a31f885b0711ac17897a844 100644
--- a/Source/bindings/core/v8/V8Binding.h
+++ b/Source/bindings/core/v8/V8Binding.h
@@ -804,6 +804,12 @@ inline bool toV8Sequence(v8::Handle<v8::Value> value, uint32_t& length, v8::Isol
     return true;
 }
 
+template <typename T>
+T script_value_cast(const v8::Local<v8::Value>& value, v8::Isolate* isolate, ExceptionState& exceptionState)

[haraken, 2015/03/14 01:27:19]

Why does this need to be defined in V8Binding.h? Can we put this in
ScriptValue.h?

+{
+    return NativeValueTraits<T>::nativeValue(value, isolate, exceptionState);
+}
+
 template<>
 struct NativeValueTraits<String> {
     static inline String nativeValue(const v8::Local<v8::Value>& value, v8::Isolate* isolate, ExceptionState& exceptionState)