Cherry-pick some test changes from ag/13210542.

ag/13210542 switched from using reset() on mResources to using
clearInvocations(). This ensures that only the previous calls are
reset, and that the mock continues to behave according to what
was specified in setUp.

Test: 183097033
Test: test-only change
Merged-In: I35d28c8df341dbbac2774026c6ca749e296c0482
Change-Id: Ieef982d2df50db3014f35f58a77674939ebe0d43