[Autofill Assistant] Fixed bug where the PR UI was broken after cancelling the add-shipping-address flow.

After tapping the 'add' button and then the 'cancel' in the shipping address section of the Autofill Assistant payment request, the UI would become unresponsive due to a missing UI update.

Bug: 806868
Change-Id: I7a1e2bcef24e82ca3bffec305536d2307a1f6a31
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1532009
Reviewed-by: Jordan Demeulenaere <jdemeulenaere@chromium.org>
Commit-Queue: Jordan Demeulenaere <jdemeulenaere@chromium.org>
Cr-Commit-Position: refs/heads/master@{#642700}
1 file changed