[Sync] Add location parameter to SyncChange in Sync API.

chrome/browser/extensions/settings/settings_sync_util.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/extensions/settings/settings_sync_util.h"
 
 #include "base/json/json_writer.h"
 #include "base/values.h"
 #include "sync/protocol/app_setting_specifics.pb.h"
 #include "sync/protocol/extension_setting_specifics.pb.h"
@@ skipping 60 matching lines @@
   return syncer::SyncData::CreateLocalData(
       extension_id + "/" + key, key, specifics);
 }
 
 syncer::SyncChange CreateAdd(
     const std::string& extension_id,
     const std::string& key,
     const Value& value,
     syncer::ModelType type) {
   return syncer::SyncChange(
+      FROM_HERE,
       syncer::SyncChange::ACTION_ADD,
       CreateData(extension_id, key, value, type));
 }
 
 syncer::SyncChange CreateUpdate(
     const std::string& extension_id,
     const std::string& key,
     const Value& value,
     syncer::ModelType type) {
   return syncer::SyncChange(
+      FROM_HERE,
       syncer::SyncChange::ACTION_UPDATE,
       CreateData(extension_id, key, value, type));
 }
 
 syncer::SyncChange CreateDelete(
     const std::string& extension_id,
     const std::string& key,
     syncer::ModelType type) {
   DictionaryValue no_value;
   return syncer::SyncChange(
+      FROM_HERE,
       syncer::SyncChange::ACTION_DELETE,
       CreateData(extension_id, key, no_value, type));
 }
 
 }  // namespace settings_sync_util
 
 }  // namespace extensions