[ios] Hides keyboard when Done editing PasswordsModal username

Tapping the Done key whenever editing a username will now dismiss the
keyboard. This is required since the Save/Update button might be hidden
by the keyboard.


Bug: 945478
Change-Id: Ic26b5f667b11d27f6fcfc7ac08824781ff3ce857
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1599673
Reviewed-by: Peter Lee <pkl@chromium.org>
Commit-Queue: Sergio Collazos <sczs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657449}
1 file changed