[Chromoting] Use ProcessStatsSender in DaemonProcess (daemon process)

remoting/host/process_stats_sender.h

Index: remoting/host/process_stats_sender.h
diff --git a/remoting/host/process_stats_sender.h b/remoting/host/process_stats_sender.h
index c33af89c6fdbdf24f6a4f18fb6690d4a70750f88..ed9e48fb5d3fc55c371f21244f1975bbd8e9296f 100644
--- a/remoting/host/process_stats_sender.h
+++ b/remoting/host/process_stats_sender.h
@@ -33,11 +33,15 @@ class ProcessStatsSender final {
                      std::initializer_list<ProcessStatsAgent*> agents);
 
   ~ProcessStatsSender();
+
+  base::TimeDelta interval() const;
+
  private:
   void ReportUsage();
 
   protocol::ProcessStatsStub* const host_stats_stub_;
   std::vector<ProcessStatsAgent*> agents_;
+  const base::TimeDelta interval_;
   base::RepeatingTimer timer_;
   const base::ThreadChecker thread_checker_;
 };