tree ad2d5ccec323017f883e3cc9a455a832bd3ae4dc
parent 82d9b7acb8da7bec4acd1daa2ab95fd397a9a12e
author Anthony Hugh <ahugh@google.com> 1562878215 -0700
committer Anthony Hugh <ahugh@google.com> 1562884764 -0700

Clean up CarUserManagerHelper methods only used in Settings [1]

Started cleaning up methods only used in the Settings app.
  - #isForegroundUserGuest
  - #hasUserRestriction
  - #canCurrentProcessAddUsers
  - #canCurrentProcessRemoveUsers
  - #scaleUserIcon
  - #setUserRestriction

Also added 2 tests to DevelopmentSettingsUtilTest around DISALLOW_DEBUGGING_FEATURES flag.

To update tests, I needed to introduce more usage of ShadowUserManager.
There's a bug with the implementation around UserRestrictions, so I had
to add a redirect method for setUserRestriction() to our subclass ShadowUserManager.

Bug: 137136907
Test: atest CarSettingsRoboTests
Test: atest CarUserManagerHelperTest
Change-Id: Ica186ce84d604db9ee20a0dd4ccc430e60d65e11