[iOS][MF] Restore original keyboard for pickers

When the keyboard changes to a picker restore it, so the user can select
one of the options from the site. The user is still able to go back into
the manual fallback menu for consultation, touching the options won't
work though.

Bug: 914766
Change-Id: I23b4d91bc2833705fe5cec8250e5eac27c5083d4
Reviewed-on: https://chromium-review.googlesource.com/c/1411931
Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: David Jean <djean@chromium.org>
Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623181}
1 file changed