Omnibox/Views: Circlify location bar decorations.

r534314 made the omnibox / LocationBarView pill-shaped without clipping the ink
drop highlight / ripples of the LocationBarView decorations (e.g. the security
chip / LocationIconView). This meant hovering / clicking on these decorations
would sometimes result in the corners of their backgrounds poking out. Fix by
making them pill-shaped as well.

Screenshots - https://drive.google.com/open?id=1gUMuVdCKa4fQH9M9t118dQC21GWRZGH8

Bug: 801583
Change-Id: I45b5c541753a203a96354dbe32b406dbf25ed259
Reviewed-on: https://chromium-review.googlesource.com/908170
Reviewed-by: Mohsen Izadi <mohsen@chromium.org>
Reviewed-by: Trent Apted <tapted@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Patti <patricialor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#536296}
6 files changed