[Chromoting] Use ProcessStatsSender in DesktopSessionAgent (desktop process)

remoting/host/chromoting_messages.h

Index: remoting/host/chromoting_messages.h
diff --git a/remoting/host/chromoting_messages.h b/remoting/host/chromoting_messages.h
index 51a9d7056e4a1284dd77de2cb9d8c83891007f28..5bc7c44c08ab1eef5678d75bc7dd49260fcc9325 100644
--- a/remoting/host/chromoting_messages.h
+++ b/remoting/host/chromoting_messages.h
@@ -13,6 +13,7 @@
 #include "remoting/host/chromoting_param_traits.h"
 #include "remoting/host/desktop_environment_options.h"
 #include "remoting/host/screen_resolution.h"
+#include "remoting/proto/process_stats.pb.h"
 #include "remoting/protocol/errors.h"
 #include "remoting/protocol/transport.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
@@ -265,3 +266,14 @@ IPC_MESSAGE_CONTROL0(ChromotingNetworkToRemoteSecurityKeyMsg_ConnectionReady)
 // Error indicating the request originated from outside the remoted session.
 // The IPC channel will be disconnected after this message has been sent.
 IPC_MESSAGE_CONTROL0(ChromotingNetworkToRemoteSecurityKeyMsg_InvalidSession)
+
+// Starts to report process resource usage.
+IPC_MESSAGE_CONTROL1(ChromotingNetworkToAnyMsg_StartProcessStatsReport,
+                     int32_t /* interval_ms */)
+
+// Stops to report process resource usage.
+IPC_MESSAGE_CONTROL0(ChromotingNetworkToAnyMsg_StopProcessStatsReport)
+
+// Reports process resource usage to network process.
+IPC_MESSAGE_CONTROL1(ChromotingAnyToNetworkMsg_ReportProcessStats,
+                     remoting::protocol::AggregatedProcessResourceUsage)