Change security style for HTTP and secure origins

Insecure origins in the sidebar will now show a red triangle icon
rather than a red circle. Some HTTP origins, specifically for
optionally blockable mixed content, still show a red circle (will be
updated in a follow-up cl).

Secure origins will now show the secure (green square) style.

Bug: 936669
Change-Id: I10efe286029379bbadbbb8c309b64eb706b8851c
Commit-Queue: Livvie Lin <>
Reviewed-by: Dmitry Gozman <>
Reviewed-by: Yutaka Hirano <>
Reviewed-by: Christopher Thompson <>
Cr-Commit-Position: refs/heads/master@{#642136}
7 files changed