[Sync] Add interface and backend impl for typed URL syncable service

chrome/browser/history/expire_history_backend.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/history/expire_history_backend.h"
 
 #include <algorithm>
 #include <functional>
 #include <limits>
 
@@ skipping 387 matching lines @@
   if (!dependencies->deleted_urls.empty()) {
     // Broadcast the URL deleted notification. Note that we also broadcast when
     // we were requested to delete everything even if that was a NOP, since
     // some components care to know when history is deleted (it's up to them to
     // determine if they care whether anything was deleted).
     URLsDeletedDetails* deleted_details = new URLsDeletedDetails;
     deleted_details->all_history = false;
     deleted_details->archived = (type == DELETION_ARCHIVED);
     deleted_details->rows = dependencies->deleted_urls;
     deleted_details->favicon_urls = dependencies->expired_favicons;
+    delegate_->NotifySyncURLsDeleted(false,
+                                     deleted_details->archived,
+                                     &deleted_details->rows);
     delegate_->BroadcastNotifications(
         chrome::NOTIFICATION_HISTORY_URLS_DELETED, deleted_details);
   }
 }
 
 void ExpireHistoryBackend::DeleteVisitRelatedInfo(
     const VisitVector& visits,
     DeleteDependencies* dependencies) {
   for (size_t i = 0; i < visits.size(); i++) {
     // Delete the visit itself.
@@ skipping 348 matching lines @@
   // We use the bookmark service to determine if a URL is bookmarked. The
   // bookmark service is loaded on a separate thread and may not be done by the
   // time we get here. We therefor block until the bookmarks have finished
   // loading.
   if (bookmark_service_)
     bookmark_service_->BlockTillLoaded();
   return bookmark_service_;
 }
 
 }  // namespace history