GitLab

Remove some async callbacks that are not needed in the renderer side
test completion path. This is toward pushing test completion code up
to the browser so we don't depend on keeping a stable renderer main
frame across navigations, which RenderDocument changes.

R=avi@chromium.org

Bug: 866140, 1069111
Change-Id: Ia73ab3ec79ec2a226fc26a92c65962355ff6e1fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2284373Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#785926}