chromium/ash/public/cpp/assistant/controller/assistant_screen_context_controller.cc

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ash/public/cpp/assistant/controller/assistant_screen_context_controller.h"

#include "base/check_op.h"

namespace ash {

namespace {

AssistantScreenContextController* g_instance = nullptr;

}  // namespace

AssistantScreenContextController::AssistantScreenContextController() {
  DCHECK_EQ(nullptr, g_instance);
  g_instance = this;
}

AssistantScreenContextController::~AssistantScreenContextController() {
  DCHECK_EQ(g_instance, this);
  g_instance = nullptr;
}

// static
AssistantScreenContextController* AssistantScreenContextController::Get() {
  return g_instance;
}

}  // namespace ash