GitLab

Background blur has been set for power menu and system toast by default,
remove flag kEnableBackgroundBlur checking for them.

Bug: 1130618
Change-Id: Ibd15ebd10369f605bac4ff123496a3777171ecbd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2422351Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Min Chen <minch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809121}