GitLab

This CL:
- Stops ChromeVox from speaking when the mic is opened for Assistant.
- No longer focuses ActionView when switching to voice input modality.

Bug: b:116139555, b:116143886
Change-Id: Ibdd316f6ed83b856adeaae7fd3ddd3796951348f
Reviewed-on: https://chromium-review.googlesource.com/c/1263564
Commit-Queue: David Black <dmblack@google.com>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602070}