Remove all the ephemeral apps code.

chrome/browser/apps/ephemeral_app_service_factory.h

Index: chrome/browser/apps/ephemeral_app_service_factory.h
diff --git a/chrome/browser/apps/ephemeral_app_service_factory.h b/chrome/browser/apps/ephemeral_app_service_factory.h
deleted file mode 100644
index 412027efff3ad7399dd8c73b433121648366a5d1..0000000000000000000000000000000000000000
--- a/chrome/browser/apps/ephemeral_app_service_factory.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// 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_FACTORY_H_
-#define CHROME_BROWSER_APPS_EPHEMERAL_APP_SERVICE_FACTORY_H_
-
-#include "base/memory/singleton.h"
-#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
-
-class EphemeralAppService;
-class Profile;
-
-class EphemeralAppServiceFactory : public BrowserContextKeyedServiceFactory {
- public:
-  static EphemeralAppService* GetForProfile(Profile* profile);
-
-  static EphemeralAppServiceFactory* GetInstance();
-
- private:
-  friend struct base::DefaultSingletonTraits<EphemeralAppServiceFactory>;
-
-  EphemeralAppServiceFactory();
-  ~EphemeralAppServiceFactory() override;
-
-  // BrowserContextKeyedServiceFactory implementation:
-  KeyedService* BuildServiceInstanceFor(
-      content::BrowserContext* context) const override;
-  content::BrowserContext* GetBrowserContextToUse(
-      content::BrowserContext* context) const override;
-  bool ServiceIsCreatedWithBrowserContext() const override;
-  bool ServiceIsNULLWhileTesting() const override;
-};
-
-#endif  // CHROME_BROWSER_APPS_EPHEMERAL_APP_SERVICE_FACTORY_H_