NOCOMMIT PROTOTYPE [GRC] Tab CPU Usage Observer

services/resource_coordinator/coordination_unit/coordination_unit_manager.cc

 // 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.
 
 #include "services/resource_coordinator/coordination_unit/coordination_unit_manager.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/macros.h"
 #include "services/resource_coordinator/coordination_unit/coordination_unit_graph_observer.h"
 #include "services/resource_coordinator/coordination_unit/coordination_unit_impl.h"
 #include "services/resource_coordinator/coordination_unit/coordination_unit_provider_impl.h"
+#include "services/resource_coordinator/coordination_unit/tab_cpu_usage_observer.h"
 #include "services/resource_coordinator/public/cpp/coordination_unit_types.h"
 #include "services/service_manager/public/cpp/binder_registry.h"
 #include "services/service_manager/public/cpp/service_context.h"
 
 namespace resource_coordinator {
 
-CoordinationUnitManager::CoordinationUnitManager() = default;
+CoordinationUnitManager::CoordinationUnitManager() {
+  RegisterObserver(new TabCPUUsageObserver());
+}
 
 CoordinationUnitManager::~CoordinationUnitManager() {
   for (CoordinationUnitGraphObserver* observer : observers_) {
     delete observer;
   }
 }
 
 void CoordinationUnitManager::OnStart(
     service_manager::BinderRegistry* registry,
     service_manager::ServiceContextRefFactory* service_ref_factory) {
@@ skipping 21 matching lines @@
 void CoordinationUnitManager::NotifyObserversCoordinationUnitWillBeDestroyed(
     CoordinationUnitImpl* coordination_unit) {
   coordination_unit->WillBeDestroyed();
 }
 
 void CoordinationUnitManager::UnregisterAllObserversForTesting() {
   observers_.clear();
 }
 
 }  // namespace resource_coordinator