chromeos: Move files in //ash/common to //ash, part 2

ash/common/cast_config_controller.h

-// Copyright 2016 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 ASH_COMMON_CAST_CONFIG_CONTROLLER_H_
-#define ASH_COMMON_CAST_CONFIG_CONTROLLER_H_
-
-#include <vector>
-
-#include "ash/public/interfaces/cast_config.mojom.h"
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "mojo/public/cpp/bindings/associated_binding.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-
-namespace ash {
-
-// There is a single CastConfigController which receives device
-// information. This observer interface sends that information to all the
-// TrayCast items--there is one per display.
-class CastConfigControllerObserver {
- public:
-  virtual void OnDevicesUpdated(
-      std::vector<mojom::SinkAndRoutePtr> devices) = 0;
-
- protected:
-  virtual ~CastConfigControllerObserver() {}
-};
-
-// We want to establish our connection lazily and preferably only once, as
-// TrayCast instances will come and go.
-class CastConfigController : public ash::mojom::CastConfig,
-                             public ash::mojom::CastConfigClient {
- public:
-  CastConfigController();
-  ~CastConfigController() override;
-
-  // Returns whether our SetClient() method has been called and the client
-  // object pointer is still live.
-  bool Connected();
-
-  void AddObserver(CastConfigControllerObserver* observer);
-  void RemoveObserver(CastConfigControllerObserver* observer);
-
-  void BindRequest(mojom::CastConfigRequest request);
-
-  // ash::mojom::CastConfig:
-  void SetClient(mojom::CastConfigClientAssociatedPtrInfo client) override;
-  void OnDevicesUpdated(std::vector<mojom::SinkAndRoutePtr> devices) override;
-
-  // ash::mojom::CastConfigClient:
-  void RequestDeviceRefresh() override;
-  void CastToSink(mojom::CastSinkPtr sink) override;
-  void StopCasting(mojom::CastRoutePtr route) override;
-
- private:
-  // Bindings for the CastConfig interface.
-  mojo::BindingSet<mojom::CastConfig> bindings_;
-
-  mojom::CastConfigClientAssociatedPtr client_;
-
-  base::ObserverList<CastConfigControllerObserver> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(CastConfigController);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_CAST_CONFIG_CONTROLLER_H_