Merge "Don't request information on unregistered callbacks"

            case CALLBACK_LISTEN_ALL:

                break;

            case CALLBACK_TRACK_DEFAULT:

                if (mDefaultNetworkCallback == null) {

                    // The callback was unregistered in the interval between

                    // ConnectivityService calling onAvailable() and our

                    // handling of it here on the mTarget.getHandler() thread.

                    // Clean-up of this network entry is deferred to the

                    // handling of onLost() by other callbacks.

                    // TODO: change to Log.wtf() after oag/331764 is merged.

                    return;

                }

                cm().requestNetworkCapabilities(mDefaultNetworkCallback);

                cm().requestLinkProperties(mDefaultNetworkCallback);

                mCurrentDefault = network;

                break;

            case CALLBACK_MOBILE_REQUEST:

                if (mMobileNetworkCallback == null) {

                    // The callback was unregistered in the interval between

                    // ConnectivityService calling onAvailable() and our

                    // handling of it here on the mTarget.getHandler() thread.

                    // Clean-up of this network entry is deferred to the

                    // handling of onLost() by other callbacks.

                    // TODO: change to Log.wtf() after oag/331764 is merged.

                    return;

                }

                cm().requestNetworkCapabilities(mMobileNetworkCallback);

                cm().requestLinkProperties(mMobileNetworkCallback);

                break;