Remove PermissionContext factories

chrome/browser/permissions/permission_context_factory_base.h

-// Copyright 2015 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_PERMISSIONS_PERMISSION_CONTEXT_FACTORY_BASE_H_
-#define CHROME_BROWSER_PERMISSIONS_PERMISSION_CONTEXT_FACTORY_BASE_H_
-
-#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
-
-class BrowserContentDependencyManager;
-
-namespace content {
-class BrowserContext;
-}
-
-// This base class goes along with the PermissionContextBase to be used for
-// factories for PermissionContextBase's subclasses.
-// - It regisers dependencies that PermissionContextBase uses.
-// - It provides the common behaviour with incognito profiles.
-class PermissionContextFactoryBase : public BrowserContextKeyedServiceFactory {
- protected:
-  PermissionContextFactoryBase(const char* name,
-                               BrowserContextDependencyManager* manager);
-  ~PermissionContextFactoryBase() override;
-
-  content::BrowserContext* GetBrowserContextToUse(
-      content::BrowserContext* context) const override;
-};
-
-#endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_CONTEXT_FACTORY_BASE_H_