Make ServiceInfo cache more permanent.

There's no need to keep re-querying PackageManager when we know nothing
has changed for an app. Make the ServiceInfo cache more permanent so we
can avoid unnecessary calls to PackageManager.

Bug: 138469672
Test: atest CtsJobSchedulerTestCases
Test: atest com.android.server.job.controllers.QuotaControllerTest
Test: atest com.android.server.job.controllers.JobStatusTest
Change-Id: I93962c632b7ccd867c9c7dfffbc19a6b48cd2565
1 file changed