Move expensive code from BroadcastReceiver to background thread

Bug: 138460874
Test: atest apexservice_test
Test: atest CtsStagedInstallHostTestCases
Test: atest RollbackTest
Change-Id: I32fdd0fdadf14bc66b5587d03ccf5e82d0d56d52
Merged-In: I1cd7daa066f32832814c28423c5c30e39c230600
1 file changed