Replace dns_tls with private_dns_mode setting
Also includes:
- SettingsLib strings used in PrivateDnsModeDialogPreference
interaction in the Settings app
- rename ContentResolver "resolver" in methods working with
DNS resolvers (too confusing)
Test: as follows
- built
- flashed
- booted
- runtest frameworks-net
- no new failures in SettingsBackupTest nor in SettingsProviderTest
- manual interaction with developer option works
Bug: 34953048
Bug: 64133961
Change-Id: Ia7502916db9ffa0792e1e500a35e34d06a88e79d
5 files changed