Remove all the ephemeral apps code.

chrome/browser/apps/ephemeral_app_service.h

-// Copyright 2013 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_APPS_EPHEMERAL_APP_SERVICE_H_
-#define CHROME_BROWSER_APPS_EPHEMERAL_APP_SERVICE_H_
-
-#include <set>
-
-#include "apps/app_lifetime_monitor.h"
-#include "base/memory/weak_ptr.h"
-#include "base/scoped_observer.h"
-#include "components/keyed_service/core/keyed_service.h"
-#include "extensions/browser/extension_registry_observer.h"
-
-class Profile;
-
-namespace extensions {
-class Extension;
-class ExtensionRegistry;
-}  // namespace extensions
-
-// Delete cached ephemeral apps at startup.
-// TODO(benwells): Remove this system.  https://crbug.com/517735.
-class EphemeralAppService : public KeyedService,
-                            public extensions::ExtensionRegistryObserver,
-                            public apps::AppLifetimeMonitor::Observer {
- public:
-  // Returns the instance for the given profile. This is a convenience wrapper
-  // around EphemeralAppServiceFactory::GetForProfile.
-  static EphemeralAppService* Get(Profile* profile);
-
-  explicit EphemeralAppService(Profile* profile);
-  ~EphemeralAppService() override;
-
-  // Clears the ephemeral app cache. Removes all idle ephemeral apps.
-  void ClearCachedApps();
-
-  void set_disable_delay_for_test(int delay) {
-    disable_idle_app_delay_ = delay;
-  }
-
- private:
-  // extensions::ExtensionRegistryObserver.
-  void OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
-                                  const extensions::Extension* extension,
-                                  bool is_update,
-                                  bool from_ephemeral,
-                                  const std::string& old_name) override;
-
-  // apps::AppLifetimeMonitor::Observer implementation.
-  void OnAppStop(Profile* profile, const std::string& app_id) override;
-  void OnChromeTerminating() override;
-
-  void Init();
-
-  void DisableEphemeralApp(const std::string& app_id);
-
-  void HandleEphemeralAppPromoted(const extensions::Extension* app);
-
-  Profile* profile_;
-
-  ScopedObserver<extensions::ExtensionRegistry,
-                 extensions::ExtensionRegistryObserver>
-      extension_registry_observer_;
-  ScopedObserver<apps::AppLifetimeMonitor, apps::AppLifetimeMonitor::Observer>
-      app_lifetime_monitor_observer_;
-
-  // Number of seconds before disabling idle ephemeral apps.
-  // Overridden in tests.
-  int disable_idle_app_delay_;
-
-  base::WeakPtrFactory<EphemeralAppService> weak_ptr_factory_;
-
-  friend class EphemeralAppServiceBrowserTest;
-
-  DISALLOW_COPY_AND_ASSIGN(EphemeralAppService);
-};
-
-#endif  // CHROME_BROWSER_APPS_EPHEMERAL_APP_SERVICE_H_