IDL: Use V8StringResource<WithNullCheck> for nullable DOMString

Source/bindings/tests/results/V8TestObject.cpp

Index: Source/bindings/tests/results/V8TestObject.cpp
diff --git a/Source/bindings/tests/results/V8TestObject.cpp b/Source/bindings/tests/results/V8TestObject.cpp
index 9ea299c891e8cd5d70b5a98f93888c3aac1ca2c8..ce42700f4db901c561d43bb0f4b07a71c3ea77a2 100644
--- a/Source/bindings/tests/results/V8TestObject.cpp
+++ b/Source/bindings/tests/results/V8TestObject.cpp
@@ -1541,7 +1541,7 @@ static void stringOrNullAttributeAttributeSetter(v8::Local<v8::Value> v8Value, c
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    TOSTRING_VOID(V8StringResource<>, cppValue, v8Value);
+    TOSTRING_VOID(V8StringResource<WithNullCheck>, cppValue, v8Value);
     impl->setStringOrNullAttribute(cppValue);
 }
 
@@ -7029,7 +7029,7 @@ static void voidMethodDefaultFalseBooleanArgMethodCallback(const v8::FunctionCal
 static void voidMethodDefaultNullableByteStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
-    V8StringResource<> defaultStringArg;
+    V8StringResource<WithNullCheck> defaultStringArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
@@ -7052,7 +7052,7 @@ static void voidMethodDefaultNullableByteStringArgMethodCallback(const v8::Funct
 static void voidMethodDefaultNullableStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
-    V8StringResource<> defaultStringArg;
+    V8StringResource<WithNullCheck> defaultStringArg;
     {
         if (info.Length() > 0) {
             TOSTRING_VOID_INTERNAL(defaultStringArg, info[0]);