Use TargetSelectionMode enum names for target provider ids.

Using string constants makes it possible to remove the
corresponding enum values in TargetSelectionMode without
noticing that this will break firebase test and debug
providers. Therefore, should reference the corresponding
enum names to make the usage more evident.

Fixes b.android.com/220864

Change-Id: I2fa7c613f59647c7e717c83a20701f1e74101780
3 files changed
tree: 376320bbec9072115c3a9ed54261af8700b61821
  1. firebase-testing/
  2. test-recorder/