GitLab

Puts dispatcher to a special mode where it pretends to recognize all
selectors and silently fail on shutdown.

Bug: 1137686, 1163129
Change-Id: Ib065d7f564f22c5be2285201d5dcd9dea39f60d1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2472039
Commit-Queue: Stepan Khapugin <stkhapugin@chromium.org>
Reviewed-by: Mark Cogan <marq@chromium.org>
Auto-Submit: Stepan Khapugin <stkhapugin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844126}