[Mfill Android] Ensure autofill popup test keeps accessory

When run locally, this test will sometimes close the accessory early
(presumably due to the autofill text input acting as focus change).

With this CL, we ensure that the accessory is forced again once the
popup is shown.

Bug: Local bug only?
Change-Id: I7587778835d71e30ee1faa817790ea5186e674a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1497143
Reviewed-by: Ioana Pandele <ioanap@chromium.org>
Commit-Queue: Friedrich [CET] <fhorschig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#637701}
1 file changed