Revert of Global Resource Coordinator: Basic service internals

services/resource_coordinator/coordination_unit/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_COORDINATION_UNIT_IMPL_H_
-#define SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_COORDINATION_UNIT_IMPL_H_
-
-#include <list>
-
-#include "base/optional.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
-#include "services/resource_coordinator/public/cpp/coordination_unit_id.h"
-#include "services/resource_coordinator/public/interfaces/coordination_unit.mojom.h"
-#include "services/resource_coordinator/public/interfaces/coordination_unit_provider.mojom.h"
-#include "services/service_manager/public/cpp/service_context_ref.h"
-
-namespace resource_coordinator {
-
-class CoordinationUnitImpl : public mojom::CoordinationUnit {
- public:
-  CoordinationUnitImpl(
-      const CoordinationUnitID& id,
-      std::unique_ptr<service_manager::ServiceContextRef> service_ref);
-  ~CoordinationUnitImpl() override;
-
-  // Overridden from mojom::CoordinationUnit:
-  void SendEvent(mojom::EventPtr event) override;
-  void GetID(const GetIDCallback& callback) override;
-  void Duplicate(mojom::CoordinationUnitRequest request) override;
-  void AddChild(const CoordinationUnitID& child_id) override;
-  void SetCoordinationPolicyCallback(
-      mojom::CoordinationPolicyCallbackPtr callback) override;
-
- private:
-  bool AddChild(CoordinationUnitImpl* child);
-  void RemoveChild(CoordinationUnitImpl* child);
-  void AddParent(CoordinationUnitImpl* parent);
-  void RemoveParent(CoordinationUnitImpl* parent);
-  bool HasParent(CoordinationUnitImpl* unit);
-  bool HasChild(CoordinationUnitImpl* unit);
-
-  void RecalcCoordinationPolicy();
-  void UnregisterCoordinationPolicyCallback();
-
-  enum StateFlags : uint8_t {
-    kTestState,
-    kTabVisible,
-    kAudioPlaying,
-    kNumStateFlags
-  };
-  bool SelfOrParentHasFlagSet(StateFlags state);
-
-  std::unique_ptr<service_manager::ServiceContextRef> service_ref_;
-  mojo::BindingSet<mojom::CoordinationUnit> bindings_;
-  CoordinationUnitID id_;
-
-  std::set<CoordinationUnitImpl*> children_;
-  std::set<CoordinationUnitImpl*> parents_;
-
-  mojom::CoordinationPolicyCallbackPtr policy_callback_;
-  mojom::CoordinationPolicyPtr current_policy_;
-
-  base::Optional<bool> state_flags_[kNumStateFlags];
-
-  DISALLOW_COPY_AND_ASSIGN(CoordinationUnitImpl);
-};
-
-}  // namespace resource_coordinator
-
-#endif  // SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_COORDINATION_UNIT_IMPL_H_