GitLab

Add `isUserConsenting` to the content shell testdriver API. This lets
us run the timeout WPTs.

Fixed: 1054810, 1054655
Change-Id: Id90567818a1fcda44794294fc3527790df056870
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2078833Reviewed-by: Ken Buchanan <kenrb@chromium.org>
Commit-Queue: Nina Satragno <nsatragno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745147}