Delete deprecated synced notifications code

chrome/common/extensions/api/synced_notifications_private.idl

-// Copyright 2014 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.
-
-// This API is designed to be used with Chrome Sync.  
-namespace syncedNotificationsPrivate {
-
-// Potential sync change types.
-enum ChangeType {
-  added,
-  updated,
-  deleted
-};
-
-// Whether or not to resync all data items if the data type context changes.
-enum RefreshRequest {
-  refresh_needed,
-  no_refresh
-};
-
-enum SyncDataType {
-  synced_notification,
-  app_info
-};
-
-dictionary SyncData {
-  SyncDataType datatype;
-  // |dataItem| will be a binary protobuf which matches the backend
-  // for the datatype.
-  ArrayBuffer dataItem;
-};
-
-// Datatype that represents a single sync change to a notification or an app
-// info.
-dictionary SyncChange {
-  SyncData data;
-  ChangeType changeType;
-};
-
-// Gets an array of SyncChange objects representing the current sync state.
-// chrome.runtime.lastError contains any errors; if that is the case then
-// changes should be undefined.
-callback GetInitialDataCallback = void (SyncData[] changes);
-// Called on completion or error of the sync operation.  lastError contains an
-// error message if required.
-callback SyncOperationCallback = void ();
-
-interface Functions {
-
-  // Gets all data from sync representing the current state (for use at
-  // startup). This returns both Synced Notifications and AppInfos (with the
-  // datatype enum set appropriately).  Can return undefined, in which case
-  // LastError will be set.  This means sync is unavailable at this time.
-  static void getInitialData(SyncDataType type,
-                             GetInitialDataCallback callback);
-
-  // Sends a changed (read state) notification back up to sync.  To keep the
-  // sync from needing to understand the protocol, we send the whole object,
-  // not just the new read state.
-  static void updateNotification(ArrayBuffer changedNotification,
-                                 SyncOperationCallback callback);
-
-  // Sets the (e.g.) Locale and DPI scale factor and list of sending services,
-  // encoded as a binary protobuf.  Sync will persist these values for this
-  // and future sessions.
-  static void setRenderContext(RefreshRequest refresh,
-                               ArrayBuffer dataTypeContext,
-                               SyncOperationCallback callback);
-
-};
-
-interface Events {
-  // Called by sync when we get new notifications or app infos from the
-  // server.
-  static void onDataChanges(SyncChange[] changes);
-
-  // Called by sync when sync becomes available.  This can be used to get the
-  // initial data for the app as soon as sync starts up, even if that is not
-  // soon after chrome startup.
-  static void onSyncStartup();
-};
-
-};