26 bool IsDtlsSctp(const std::string& protocol) {  in IsDtlsSctp()  argument
27   return protocol == kMediaProtocolDtlsSctp ||  in IsDtlsSctp()
28          protocol == kMediaProtocolUdpDtlsSctp ||  in IsDtlsSctp()
29          protocol == kMediaProtocolTcpDtlsSctp;  in IsDtlsSctp()
32 bool IsPlainSctp(const std::string& protocol) {  in IsPlainSctp()  argument
33   return protocol == kMediaProtocolSctp;  in IsPlainSctp()
36 bool IsRtpProtocol(const std::string& protocol) {  in IsRtpProtocol()  argument
37   if (protocol.empty()) {  in IsRtpProtocol()
40   size_t pos = protocol.find(cricket::kMediaProtocolRtpPrefix);  in IsRtpProtocol()
45   if (pos == 0 || !isalpha(protocol[pos - 1])) {  in IsRtpProtocol()
51 bool IsSctpProtocol(const std::string& protocol) {  in IsSctpProtocol()  argument
52   return IsPlainSctp(protocol) || IsDtlsSctp(protocol);  in IsSctpProtocol()