Show all system process in the task_manager.

chrome/browser/task_management/providers/arc/arc_process_task_provider.h

Index: chrome/browser/task_management/providers/arc/arc_process_task_provider.h
diff --git a/chrome/browser/task_management/providers/arc/arc_process_task_provider.h b/chrome/browser/task_management/providers/arc/arc_process_task_provider.h
index 49aea04da738d12d397c8de67d9cf4aa3c7b1565..b29fea4fd6ac1f3d7f2cdc84b6417b10472ecea0 100644
--- a/chrome/browser/task_management/providers/arc/arc_process_task_provider.h
+++ b/chrome/browser/task_management/providers/arc/arc_process_task_provider.h
@@ -40,18 +40,26 @@ class ArcProcessTaskProvider : public TaskProvider {
                             int route_id) override;
 
  private:
+  using ScheduleNextRequest = base::Callback<void(void)>;
+
   // Auto-retry if ARC bridge service is not ready.
-  void RequestProcessList();
+  void RequestAppProcessList();
+  void RequestSystemProcessList();
 
-  void OnUpdateProcessList(const std::vector<arc::ArcProcess>& processes);
+  void UpdateAppProcessList(const std::vector<arc::ArcProcess>& processes);
+  void UpdateSystemProcessList(const std::vector<arc::ArcProcess>& processes);
+  void OnUpdateAppProcessList(const std::vector<arc::ArcProcess>& processes);
+  void OnUpdateSystemProcessList(const std::vector<arc::ArcProcess>& processes);
 
   // task_management::TaskProvider:
   void StartUpdating() override;
   void StopUpdating() override;
 
-  void ScheduleNextRequest();
+  void ScheduleNextAppRequest();
+  void ScheduleNextSystemRequest();
 
   std::map<base::ProcessId, std::unique_ptr<ArcProcessTask>> nspid_to_task_;
+  std::map<base::ProcessId, std::unique_ptr<ArcProcessTask>> pid_to_sys_task_;
 
   // Whether to continue the periodical polling.
   bool is_updating_;