Moving SwitchOutputDevice out of OutputDevice interface, eliminating OutputDevice

media/base/fake_output_device.h

-// Copyright (c) 2015 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 MEDIA_BASE_FAKE_OUTPUT_DEVICE_H_
-#define MEDIA_BASE_FAKE_OUTPUT_DEVICE_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "media/base/output_device.h"
-
-namespace media {
-
-class FakeOutputDevice : public OutputDevice {
- public:
-  FakeOutputDevice();
-  explicit FakeOutputDevice(OutputDeviceStatus status);
-  ~FakeOutputDevice() override;
-
-  // OutputDevice implementation.
-  void SwitchOutputDevice(const std::string& device_id,
-                          const url::Origin& security_origin,
-                          const SwitchOutputDeviceCB& callback) override;
-  AudioParameters GetOutputParameters() override;
-  OutputDeviceStatus GetDeviceStatus() override;
-
- private:
-  OutputDeviceStatus device_status_;
-  DISALLOW_COPY_AND_ASSIGN(FakeOutputDevice);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_BASE_FAKE_OUTPUT_DEVICE_H_