9cd0fea519
Also add new API for determining whether the current data network is active, and thus better scheduling network operations. This API is designed to not be tied to a mobile network -- regardless of the network, apps can use it to determine whether they should initiate activity or wait. On non-mobile networks, it simply always reports as the network being active. This changed involved reworking how the idle timers are done so that we only register an idle timer with the current default network. This way, we can know whether we currently expect to get callbacks about the network being active, or should just always report that it is active. (Ultimately we need to be getting this radio active data from the radio itself.) Change-Id: Iaf6cc91a960d7542a70b72f87a7db26d12c4ea8e