[VK] Reset hit test bounds when changing container type.

We previously added a setHitTestBounds API that allows IME to indicate
what area on the keyboard is clickable. However, if IME forgets to
set it when the UI changes (e.g. when the container type changes), then
the UI may be unusable because it is using another container type's
hit test bounds.

This patch resets the hit test bounds when we change the container
type.

Bug: 866380
Change-Id: Ia02d958e8aa8505c82a82121e00647702da4df69
Reviewed-on: https://chromium-review.googlesource.com/1152327
Commit-Queue: Darren Shen <shend@chromium.org>
Reviewed-by: Yuichiro Hanada <yhanada@chromium.org>
Cr-Commit-Position: refs/heads/master@{#578515}
2 files changed