Use hermetic apps for testing metric collectors.

Bug: b/171566956

Test: AppStartuphhelperTest, CpuUsageHelperTest
Change-Id: Ibba6a217cdb860e0afd3d1bd884f05b16ad126e0
2 files changed
tree: 5cad8698fc3a6ac30eba00ccbae98ae155fb94e5
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg