Support custom user strings.

Use UserHandle.parseUserArg() when parsing adb command flags to enable
parsing "cur" and other special user strings.

Bug: 282063891
Test: atest CtsJobSchedulerTestCases
Test: `adb shell cmd jobscheduler run --user cur com.android.settings 2131427352`
Change-Id: Ibe06f536f1de760a5604d067b6c1894f756a17c6
1 file changed