Use 4px radius on borders to match Chrome OS

Changes border-radii to 4px (from 2px) to more closely match Chrome OS.

This was applied via vimsed with the command :%"s/\(radius:.*\)2px/\14px/gc"

Bug: 822495
Change-Id: Iee04caabbcfba0a44bdce3a20eee91d991a2dda7
Reviewed-on: https://chromium-review.googlesource.com/1125553
Commit-Ready: Josh Pratt <jopra@chromium.org>
Tested-by: Josh Pratt <jopra@chromium.org>
Reviewed-by: Raymes Khoury <raymes@chromium.org>
4 files changed