21 virtual ::webrtc::RTCError OpenChannel(
int) = 0;
25 virtual ::webrtc::RTCError CloseChannel(
int) = 0;
29 virtual bool IsReadyToSend()
const = 0;
31 virtual uint64 buffered_amount(
int)
const = 0;
33 virtual uint64 buffered_amount_low_threshold(
int)
const = 0;
35 virtual void SetBufferedAmountLowThreshold(
int, uint64) = 0;