2c61a26366
The "default network tracking" request is somewhere between a listen and a request, in previous semantics. It is more like a listen in that it doesn't cause any network to be brought up, but also like a request in that will only get callbacks about a single network at a time (not all networks that might match). This change minimally splits the NetworkRequest types into 3: LISTEN, REQUEST, and TRACK_DEFAULT. Change-Id: I2d113b2f6eed526a7808592bce0118260a56f77c