IDL: Null values should be converted for non-nullable dictionary members

Source/bindings/tests/results/core/V8TestInterfaceEventInit.cpp

Index: Source/bindings/tests/results/core/V8TestInterfaceEventInit.cpp
diff --git a/Source/bindings/tests/results/core/V8TestInterfaceEventInit.cpp b/Source/bindings/tests/results/core/V8TestInterfaceEventInit.cpp
index 9ee8ce1645f2e3b48a732de6b9e291d306101c29..5c661ec9a82207d29de05c05d904e6d0acc447ad 100644
--- a/Source/bindings/tests/results/core/V8TestInterfaceEventInit.cpp
+++ b/Source/bindings/tests/results/core/V8TestInterfaceEventInit.cpp
@@ -28,13 +28,16 @@ void V8TestInterfaceEventInit::toImpl(v8::Isolate* isolate, v8::Handle<v8::Value
     v8::Local<v8::Object> v8Object = v8Value->ToObject(isolate);
     v8::TryCatch block;
     v8::Local<v8::Value> stringMemberValue = v8Object->Get(v8String(isolate, "stringMember"));
-    if (!stringMemberValue.IsEmpty() && !isUndefinedOrNull(stringMemberValue)) {
-        TOSTRING_VOID(V8StringResource<>, stringMember, stringMemberValue);
-        impl.setStringMember(stringMember);
-    } else if (block.HasCaught()) {
+    if (block.HasCaught()) {
         exceptionState.rethrowV8Exception(block.Exception());
         return;
     }
+    if (stringMemberValue.IsEmpty() || stringMemberValue->IsUndefined()) {
+        // Do nothing.
+    } else {
+        TOSTRING_VOID(V8StringResource<>, stringMember, stringMemberValue);
+        impl.setStringMember(stringMember);
+    }
 
 }