GitLab

Based on UXW feedback, modify the live caption settings subtitle string
and add a new download complete string. Also, only show the download
error message when there is an error event from the component updater.
Previously, we also showed an error message if the download progress
was unknown, but it is better to do nothing in that case and wait for
more information about the download progress.

Bug: 1055150
Change-Id: Ib8343b45b20b8a3b66a4dbbc15361189d015cae7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2343231Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Abigail Klein <abigailbklein@google.com>
Cr-Commit-Position: refs/heads/master@{#796076}