The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bc93c95712b288d09f214d468e0921d58f3bc836

commit bc93c95712b288d09f214d468e0921d58f3bc836
Author: Olivier Robin <olivierrobin@chromium.org>
Date: Fri May 25 21:26:26 2018

[AF iOS] Do not set angular model value for element without scope.

When elements don't have scope, setting the model value throws an
undefined element exceptions, causing autofill to fail.
Test existence of scope before updating model.

Bug:  846730 
Change-Id: Ia1119604252829d2012bfc728de297607aa92883
Reviewed-on: https://chromium-review.googlesource.com/1072473
Reviewed-by: Moe Ahmadi <mahmadi@chromium.org>
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#562015}
[modify] https://crrev.com/bc93c95712b288d09f214d468e0921d58f3bc836/components/autofill/ios/fill/resources/fill.js