GitLab

Adding flag for live page sharing of Offline Pages.

Bug: 870895
Change-Id: Id34ae2ebcc1c83e736505f69a9d78055d3aec94e
Reviewed-on: https://chromium-review.googlesource.com/1162824
Commit-Queue: Yafei Duan <romax@chromium.org>
Reviewed-by: Dmitry Titov <dimich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581057}