Update the way of presenting language name.

The source language localized name might contain bracket already, for example:
Chinese (Traditional). Checked with UX team and update the way we
present language name to "[query] ยท [language name]".

Bug: b/144317438
Test: unit tests
Change-Id: Iab209a4eb0d2abdb5ce1b298f7528f751e39cfe2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2013893
Commit-Queue: Li Lin <llin@chromium.org>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734332}
2 files changed