GitLab

* Reduce space to edge of screen.
* Draw the indicators as strokes, not rects, to be able to use "softer"
  flags (stroke cap, etc.).

Bug: 880578
Change-Id: Ic4268766561d2d038589f5216d22084463f551d4
Reviewed-on: https://chromium-review.googlesource.com/c/1288505Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Manu Cornet <manucornet@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600923}