GitLab

Factored out the browser dependency present in browser_view_layout by
moving the required functionality to its delegate, allowing for
simplified testing of the layout component.

Bug: 871419
Change-Id: If4d738677ad1e6666cda245e64aa62a2e2d103ab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1877613
Commit-Queue: Thomas Lukaszewicz <tluk@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710046}