[unified-consent] Add Google-G icon in settings

This CL adds a Google G icon next to
"Sync and Google services" on the chrome://settings
page.

Bug: 872486
Change-Id: I8ef68cd0969dc7e926c40d91b05784e72106153d
Reviewed-on: https://chromium-review.googlesource.com/1179753
Reviewed-by: Scott Chen <scottchen@chromium.org>
Commit-Queue: Thomas Tangl <tangltom@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584343}
2 files changed