BackupEncryptionService (which is in a separate APK) provides a IntermediateTransport
which binds to the real transport.
We do this so that IntermediateEncryptingTransport can encrypt (decrypt) the
data when sending it (receiving it) from the real transport.
In this CL, IntermediateTransport does not do any encryption. It simply forwards
the data on. We will add the actual encryption in the next CL.
Bug: 139269919
Test: atest -v BackupEncryptionUnitTests
Test: atest -v RunBackupFrameworksServicesRoboTests
Test: atest -v $(find frameworks/base/services/tests/servicestests/src/com/android/server/backup -name '\''*Test.java'\'')'
Test: atest -v CtsBackupTestCases CtsBackupHostTestCases
Change-Id: I83a84ed3e638eb1dd165fffe406495f80ff930aa
Bring KeyWrapUtils in from GMSCore. This class relies heavily on a set
of protobufs, so this CL includes the creation of the protobuf target
support it and the inclusion of that target in the tests.
Bug: 111386661
Test: atest BackupFrameworksServicesRoboTests
Change-Id: I89e0c68a449f784b132780410d9de32824bb674a
