add missed explicit
@ -62,7 +62,7 @@ typedef std::list<grpc_time> deadline_list;
class ClientRpcContext {
public:
ClientRpcContext(int ch) : channel_id_(ch) {}
explicit ClientRpcContext(int ch) : channel_id_(ch) {}
virtual ~ClientRpcContext() {}
// next state, return false if done. Collect stats when appropriate
virtual bool RunNextState(bool, Histogram* hist) = 0;