GitLab

+ Add an incognito badge on location bar on phone
+ Update incognito location bar background to black

Bug: 942776
Change-Id: I13d64ac21a082e77a8df7b640f68f87ff9798072
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1566754Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Becky Zhou <huayinz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652276}