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 - Change border width to 4px (previously 6px).
 - Change color to google-blue-refresh-300 (previously
   google-blue-refresh-700)

Both changes are according to the mocks.

Bug: 1110756
Change-Id: I8b5fbac0f12448e80931d104e3af23eb51d687fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2358887
Commit-Queue: dpapad <dpapad@chromium.org>
Auto-Submit: dpapad <dpapad@chromium.org>
Reviewed-by: John Lee <johntlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#799066}