[Sync] Split DirectoryChangeListener for thread-safety

chrome/browser/sync/abstract_profile_sync_service_test.cc

 // Copyright (c) 2011 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/sync/abstract_profile_sync_service_test.h"
 
+#include "base/tracked.h"
 #include "chrome/browser/sync/engine/syncapi.h"
 #include "chrome/browser/sync/protocol/sync.pb.h"
 #include "chrome/browser/sync/syncable/directory_manager.h"
 #include "chrome/browser/sync/syncable/syncable.h"
 #include "chrome/browser/sync/test_profile_sync_service.h"
 #include "chrome/browser/sync/util/cryptographer.h"
 #include "chrome/test/sync/engine/test_id_factory.h"
 
 using browser_sync::TestIdFactory;
 using sync_api::UserShare;
@@ skipping 23 matching lines @@
     ModelType model_type, UserShare* user_share,
     TestIdFactory* ids) {
   DirectoryManager* dir_manager = user_share->dir_manager.get();
 
   ScopedDirLookup dir(dir_manager, user_share->name);
   if (!dir.good())
     return false;
 
   std::string tag_name = GetTagForType(model_type);
 
-  WriteTransaction wtrans(dir, UNITTEST, __FILE__, __LINE__);
+  WriteTransaction wtrans(dir, UNITTEST, FROM_HERE);
   MutableEntry node(&wtrans,
                     CREATE,
                     wtrans.root_id(),
                     tag_name);
   node.Put(UNIQUE_SERVER_TAG, tag_name);
   node.Put(IS_DIR, true);
   node.Put(SERVER_IS_DIR, false);
   node.Put(IS_UNSYNCED, false);
   node.Put(IS_UNAPPLIED_UPDATE, false);
   node.Put(SERVER_VERSION, 20);
@@ skipping 43 matching lines @@
 }
 
 CreateRootTask::~CreateRootTask() {}
 void CreateRootTask::Run() {
   success_ = test_->CreateRoot(model_type_);
 }
 
 bool CreateRootTask::success() {
   return success_;
 }