GitLab

Add support for can_go_forward and can_go_back in implementation of
frame.

Bug: 948873
Change-Id: I82c5bb5eaad60dd44428d5376617e34b43d56c29
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1542228
Commit-Queue: Sharon Yang <yangsharon@chromium.org>
Reviewed-by: Kevin Marshall <kmarshall@chromium.org>
Reviewed-by: Fabrice de Gans-Riberi <fdegans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654735}