registerUserData
Registers, with Platform Services, the data pertaining to the user authentication token, and both the mobile and the cast device information.
Parameters
platformClient
The PlatformClient instance.
castDeviceID
The cast device identifier.
authToken
The user authentication token.
NOTE: This method MUST be called only after the CastManagerStateListener.onSessionStarted callback is triggered since the callback will provide the cast device identifier.