Fix args in error case
Fix args in error case

Thanks for the catch!  Ideally, I'd add a test case here, but the old code was also throwing an NSM and there is currently no way to query an NSM to get the method, etc.

TBR=alexandre.ardhuin@gmail.com

Review URL: https://chromiumcodereview.appspot.com//11367096

a14n/js-interop,dart-archive/js-interop-deprecated,a14n/js-interop