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If user stays in advanced protection,  ::OnGetIDToken(..) will not
trigger scheduling next refresh. This CL fixes this issue.

This CL also enables most unit tests on Chrome OS.

Bug: 880931
Change-Id: I59d2c30b7a87bb59b755bea0b31b32081d21ef11
Reviewed-on: https://chromium-review.googlesource.com/1207577Reviewed-by: Daniel Rubery <drubery@chromium.org>
Commit-Queue: Jialiu Lin <jialiul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#588993}