Merge changes from topics "presubmit-am-3c3afa1d2a32426e9cc02b94cf882542", "presubmit-am-6f994c13a42546078af5336c840bf97f" into tm-dev

* changes:
  Revert "Revert "Remove ComputerTracker and fix consistency in PackageManagerService""
  Ignore SharedLibrariesImplTest