GitLab

Create a default implementation of
AppBrowserController::HasTitlebarToolbar which removes the toolbar
for System Apps (except Terminal), but shows it for all other apps.

Added controls for app origin text, and content settings to remove
these for System Apps.

Bug: 846546
Change-Id: I9a4083cd78c81736533a2dd275aba70d32a6c233
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1763268Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Alan Cutter <alancutter@chromium.org>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690439}