[subresource_filter] Implement the "Smart" UI on Android

chrome/browser/subresource_filter/subresource_filter_content_settings_manager_factory.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_SUBRESOURCE_FILTER_SUBRESOURCE_FILTER_CONTENT_SETTINGS_MANAGER_FACTORY_H_
 #define CHROME_BROWSER_SUBRESOURCE_FILTER_SUBRESOURCE_FILTER_CONTENT_SETTINGS_MANAGER_FACTORY_H_
 
 #include "base/macros.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 
 class KeyedService;
 class Profile;
+class SubresourceFilterContentSettingsManager;
 
 // This class is responsible for instantiating a profile-scoped object which
 // observes changes to content settings.
 class SubresourceFilterContentSettingsManagerFactory
     : public BrowserContextKeyedServiceFactory {
  public:
-  static void EnsureForProfile(Profile* profile);
+  static SubresourceFilterContentSettingsManager* EnsureForProfile(
+      Profile* profile);
 
   static SubresourceFilterContentSettingsManagerFactory* GetInstance();
 
   SubresourceFilterContentSettingsManagerFactory();
 
  private:
   KeyedService* BuildServiceInstanceFor(
       content::BrowserContext* profile) const override;
 
   DISALLOW_COPY_AND_ASSIGN(SubresourceFilterContentSettingsManagerFactory);
 };
 
 #endif  // CHROME_BROWSER_SUBRESOURCE_FILTER_SUBRESOURCE_FILTER_CONTENT_SETTINGS_MANAGER_FACTORY_H_