[Chromoting] Use ProcessStatsSender in DesktopSessionAgent (desktop process)

remoting/base/constants.h

Index: remoting/base/constants.h
diff --git a/remoting/base/constants.h b/remoting/base/constants.h
index c056e782a67363f8f49533c4c4f560514d4fb206..78119fd9b3b1a6185299c7ef63c1afac8f34044d 100644
--- a/remoting/base/constants.h
+++ b/remoting/base/constants.h
@@ -5,6 +5,8 @@
 #ifndef REMOTING_BASE_CONSTANTS_H_
 #define REMOTING_BASE_CONSTANTS_H_
 
+#include "base/time/time.h"
+
 namespace remoting {
 
 // Namespace used for chromoting XMPP stanzas.
@@ -22,6 +24,10 @@ extern const char kMimeTypeTextUtf8[];
 
 const int kDefaultDpi = 96;
 
+// The default interval for processes to send resource usage to network process.
+constexpr base::TimeDelta kDefaultProcessStatsInterval =
+    base::TimeDelta::FromMilliseconds(2000);
+
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_CONSTANTS_H_