Move and rename Chrome's AppLauncherId to ash::AppLaunchId.

chrome/browser/ui/ash/app_launcher_id.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 CHROME_BROWSER_UI_ASH_APP_LAUNCHER_ID_H_
-#define CHROME_BROWSER_UI_ASH_APP_LAUNCHER_ID_H_
-
-#include <string>
-
-namespace ash {
-
-// A unique chrome launcher id used to identify a shelf item. This class is a
-// wrapper for the chrome launcher identifier. |app_launcher_id_| includes the
-// |app_id| and the |launch_id|. The |app_id| is the application id associated
-// with a set of windows. The |launch_id| is an id that can be passed to an app
-// when launched in order to support multiple shelf items per app. This id is
-// used together with the |app_id| to uniquely identify each shelf item that
-// has the same |app_id|. The |app_id| must not be empty.
-class AppLauncherId {
- public:
-  AppLauncherId(const std::string& app_id, const std::string& launch_id);
-  // Creates an AppLauncherId with an empty |launch_id|.
-  explicit AppLauncherId(const std::string& app_id);
-  // Empty constructor for pre-allocating.
-  AppLauncherId();
-  ~AppLauncherId();
-
-  AppLauncherId(const AppLauncherId& app_launcher_id) = default;
-  AppLauncherId(AppLauncherId&& app_launcher_id) = default;
-  AppLauncherId& operator=(const AppLauncherId& other) = default;
-
-  const std::string& app_id() const { return app_id_; }
-  const std::string& launch_id() const { return launch_id_; }
-
- private:
-  // The application id associated with a set of windows.
-  std::string app_id_;
-  // An id that can be passed to an app when launched in order to support
-  // multiple shelf items per app.
-  std::string launch_id_;
-};
-
-}  // namespace ash
-
-#endif  // CHROME_BROWSER_UI_ASH_APP_LAUNCHER_ID_H_