[GRC] Process Coordination Unit support for Global Resource Controller

services/resource_coordinator/coordination_unit/process_coordination_unit_impl.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_PROCESS_COORDINATION_UNIT_IMPL_H_
+#define SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_PROCESS_COORDINATION_UNIT_IMPL_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "base/process/process_metrics.h"
+#include "base/timer/timer.h"
+#include "services/resource_coordinator/coordination_unit/coordination_unit_impl.h"
+
+namespace service_manager {
+class ServiceContextRef;
+}
+
+namespace resource_coordinator {
+
+struct CoordinationUnitID;
+
+class ProcessCoordinationUnitImpl : public CoordinationUnitImpl {
+ public:
+  ProcessCoordinationUnitImpl(
+      const CoordinationUnitID& id,
+      std::unique_ptr<service_manager::ServiceContextRef> service_ref);
+  ~ProcessCoordinationUnitImpl() override;
+  void MeasureProcessCPUUsage();
+  double GetCPUUsageForTesting() override;
+
+ private:
+  std::unique_ptr<base::ProcessMetrics> process_metrics_;
+  base::OneShotTimer repeating_timer_;
+  double cpu_usage_;
+
+  DISALLOW_COPY_AND_ASSIGN(ProcessCoordinationUnitImpl);
+};
+
+}  // namespace resource_coordinator
+
+#endif  // SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_PROCESS_COORDINATION_UNIT_IMPL_H_