GitLab

This CL adds a new ScopedSetIdleState class for testing that sets an
overriding idle state in ui/base/idle so that classes depending on
ui/base/idle can be more easily tested.

Bug: 951560
Change-Id: I4234af0783c7fc053620803b74f0ef6b0fc0ce4c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1643414Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#666444}