GitLab

Add a function to change sub label's text color in QuickActionItem,
which is used in enable hotspot to change the color to green when
connected.

Bug: 1106937,1126208
Change-Id: Ia892551bd7d60ea1131b6d5c84f60cd6951b8e83
Fixed: 1144843
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2512547Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Tim Song <tengs@chromium.org>
Commit-Queue: Andre Le <leandre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823340}