ProvidesSequenceNumber
bool ProvidesSequenceNumber(uint32 sequenceNo) const;
if (!packet->ProvidesSequenceNumber(fNextSequence + readBytes)) {
if (packet->ProvidesSequenceNumber(fNextSequence))
if (fFirstPacket->ProvidesSequenceNumber(fNextSequence)) {
if (packet->Next()->ProvidesSequenceNumber(fNextSequence)) {