Add tests for rest of Client API functions.
Add tests for rest of Client API functions.

Bug: 141241849
Test: atest perfetto_integrationtests

Change-Id: Ib9fa4e6e3fc1ed08d2a1ee17f809d15e7697b935

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto