Pref service: delete old implementation

services/preferences/public/interfaces/preferences.mojom

 // Copyright 2016 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.
 
 module prefs.mojom;
 
 import "mojo/common/values.mojom";
 import "services/preferences/public/interfaces/preferences_configuration.mojom";
 
 const string kServiceName = "preferences";
-
-// Used for the creation of a PreferencesService and to ensure that the
-// PreferencesServiceClient is bound at creation time.
-interface PreferencesServiceFactory {
-  // Creates a PreferencesService bound to the provided |observer|.
-  Create(PreferencesServiceClient observer, PreferencesService& service);
-};
-
-// Used to subscribe to preference changes within PreferenceManager. After
-// requesting to observe, the current values for all requested keys are sent.
-interface PreferencesServiceClient {
-  OnPreferencesChanged(mojo.common.mojom.DictionaryValue preferences);
-};
-
-// Manages actual read/write of preference data. Accepts observers who subscribe
-// to preferences, notifying them of changes.
-interface PreferencesService {
-  SetPreferences(mojo.common.mojom.DictionaryValue preferences);
-  Subscribe(array<string> preferences);
-};
-
-const string kPrefStoreServiceName = "preferences2";
 const string kForwarderServiceName = "preferences_forwarder";
 
 // The know pref store types.
 //
 // Should be kept in sync with PrefValueStore::PrefStoreType.
 enum PrefStoreType {
   MANAGED,
   SUPERVISED_USER,
   EXTENSION,
   COMMAND_LINE,
@@ skipping 100 matching lines @@
   // PrefRegistry::PrefRegistrationFlags and
   // PrefRegistrySyncable::PrefRegistrationFlags.
   uint32 flags;
 };
 
 interface PrefServiceControl {
   // Initializes the pref service. This must be called before the service can
   // be used.
   Init(PersistentPrefStoreConfiguration configuration);
 };