[Chromoting] Use ProcessStatsSender in host process

remoting/host/client_session.h

Index: remoting/host/client_session.h
diff --git a/remoting/host/client_session.h b/remoting/host/client_session.h
index 55e06d1f7f4afc00de76e1480228f27c89ae15c5..3c5aafda151ea77a4507917dde567bd34707ac43 100644
--- a/remoting/host/client_session.h
+++ b/remoting/host/client_session.h
@@ -18,6 +18,7 @@
 #include "base/timer/timer.h"
 #include "remoting/host/client_session_control.h"
 #include "remoting/host/client_session_details.h"
+#include "remoting/host/current_process_stats_agent.h"
 #include "remoting/host/desktop_environment_options.h"
 #include "remoting/host/host_experiment_session_plugin.h"
 #include "remoting/host/host_extension_session_manager.h"
@@ -42,6 +43,7 @@ class DesktopEnvironment;
 class DesktopEnvironmentFactory;
 class InputInjector;
 class MouseShapePump;
+class ProcessStatsSender;
 class ScreenControls;
 
 namespace protocol {
@@ -248,6 +250,12 @@ class ClientSession : public base::NonThreadSafe,
 
   HostExperimentSessionPlugin host_experiment_session_plugin_;
 
+  // Reports resource usage through ConnectionToClient.
+  std::unique_ptr<ProcessStatsSender> stats_sender_;
+
+  // Retrieves resource usage of current process.
+  CurrentProcessStatsAgent current_process_stats_agent_;
+
   // Used to disable callbacks to |this| once DisconnectSession() has been
   // called.
   base::WeakPtrFactory<ClientSessionControl> weak_factory_;