Show USB printer configuration notification

This change implements the showing of the configuration required
notification when a user plugs in a USB printer that requires user
input to configure. Clicking the notification opens CrOS native print

Bug: 951139
Change-Id: I968a7fa13ab764d8583739820f52af7961ec24d2
Reviewed-by: Zentaro Kavanagh <>
Commit-Queue: Bailey Berro <>
Cr-Commit-Position: refs/heads/master@{#661559}
4 files changed