Disable lock screen notification

We have decided not to ship this at least for M74, so this CL disables it by default. I will merge this to the M74 branch as well.

R=​tengs@chromium.org
CC=​tetsui@chromium.org, sarakato@chromium.org
TBR=oshima@chromium.org

Bug: 943423
Change-Id: Iad61f219b2b4f9b5f2561b68ddeb28a9dadb3266
Test: none
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1530213
Reviewed-by: Tim Song <tengs@chromium.org>
Commit-Queue: Yoshiki Iguchi <yoshiki@chromium.org>
Auto-Submit: Yoshiki Iguchi <yoshiki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641818}
1 file changed