Android Q Preview 5 (QPP5.190530.014)
Change the default to gtest format.

The test infrastructure expects gtest format, so switch it to be the default.

Bug: 128906261

Test: Unit tests pass.
Test: bionic unit tests have the gtest format.
Change-Id: I8b6395bea11f269e553b5fae8f5fb0408cbf1963
3 files changed