DiscardCallback   253 chrome/browser/extensions/api/webrtc_logging_private/webrtc_logging_private_api.cc       &WebrtcLoggingPrivateDiscardFunction::DiscardCallback, this);
DiscardCallback   125 chrome/browser/extensions/api/webrtc_logging_private/webrtc_logging_private_api.h   void DiscardCallback(bool success, const std::string& error_message);