Cleanup nits in ImportantFileWriter and JsonPrefStore.

components/bookmarks/browser/bookmark_storage.cc

 // 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.
 
 #include "components/bookmarks/browser/bookmark_storage.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_util.h"
 #include "base/json/json_file_value_serializer.h"
@@ skipping 125 matching lines @@
   extra_nodes_ = load_extra_callback_.Run(&max_id_);
 }
 
 // BookmarkStorage -------------------------------------------------------------
 
 BookmarkStorage::BookmarkStorage(
     BookmarkModel* model,
     const base::FilePath& profile_path,
     base::SequencedTaskRunner* sequenced_task_runner)
     : model_(model),
-      writer_(profile_path.Append(kBookmarksFileName), sequenced_task_runner),
+      writer_(profile_path.Append(kBookmarksFileName),
+              sequenced_task_runner,
+              base::TimeDelta::FromMilliseconds(kSaveDelayMS)),
+      sequenced_task_runner_(sequenced_task_runner),
       weak_factory_(this) {
-  sequenced_task_runner_ = sequenced_task_runner;
-  writer_.set_commit_interval(base::TimeDelta::FromMilliseconds(kSaveDelayMS));
   sequenced_task_runner_->PostTask(FROM_HERE,
                                    base::Bind(&BackupCallback, writer_.path()));
 }
 
 BookmarkStorage::~BookmarkStorage() {
   if (writer_.HasPendingWrite())
     writer_.DoScheduledWrite();
 }
 
 void BookmarkStorage::LoadBookmarks(
@@ skipping 43 matching lines @@
   }
 
   scoped_ptr<std::string> data(new std::string);
   if (!SerializeData(data.get()))
     return false;
   writer_.WriteNow(data.Pass());
   return true;
 }
 
 }  // namespace bookmarks