The default value for NullableString should be null (was "")

mojo/public/js/bindings/struct_unittests.js

Index: mojo/public/js/bindings/struct_unittests.js
diff --git a/mojo/public/js/bindings/struct_unittests.js b/mojo/public/js/bindings/struct_unittests.js
index d4a568ccf41f8bde7995025345535ed3d791a2fa..aba01baab11b43aa9c63fea033f332ab9914da50 100644
--- a/mojo/public/js/bindings/struct_unittests.js
+++ b/mojo/public/js/bindings/struct_unittests.js
@@ -26,8 +26,7 @@ define([
     expect(new testStructs.RectPair({second: r}).first).toBeNull();
 
     var nr = new testStructs.NamedRegion();
-    // TODO(hansmuller): nr.name should be null, see crbug.com/417039.
-    expect(nr.name).toBe("");
+    expect(nr.name).toBeNull();
     expect(nr.rects).toBeNull();
     expect(nr).toEqual(new testStructs.NamedRegion({}));