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- // Copyright 2019 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 "ash/public/cpp/night_light_controller.h"
- #include "base/check_op.h"
- namespace ash {
- namespace {
- NightLightController* g_night_light_controller = nullptr;
- }
- // static
- NightLightController* NightLightController::GetInstance() {
- return g_night_light_controller;
- }
- NightLightController::NightLightController() {
- DCHECK(!g_night_light_controller);
- g_night_light_controller = this;
- }
- NightLightController::~NightLightController() {
- DCHECK_EQ(g_night_light_controller, this);
- g_night_light_controller = nullptr;
- }
- void NightLightController::AddObserver(Observer* observer) {
- observers_.AddObserver(observer);
- }
- void NightLightController::RemoveObserver(Observer* observer) {
- observers_.RemoveObserver(observer);
- }
- } // namespace ash
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