GitLab

No one listens or sends messages via RenderViewObserver anymore.

BUG=1097816

Change-Id: I760e8f97992a23f6aaec51cb187405881f494471
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2476754Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817654}