GitLab

Using an observer + boolean attributes to reduce the number of
unnecessary function calls from the HTML whenever AppState changes.

Bug: 1059779
Change-Id: I20f92489adcc351dace224d0fc33f4c95478f472
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2544751
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Reviewed-by: Jesse Schettler <jschettler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828436}