Cleaned up includes and unused declarations in the bookmarks component.

components/bookmarks/core/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/core/browser/bookmark_storage.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
-#include "base/files/file_path.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/histogram.h"
 #include "base/sequenced_task_runner.h"
 #include "base/time/time.h"
 #include "components/bookmarks/core/browser/bookmark_codec.h"
 #include "components/bookmarks/core/browser/bookmark_index.h"
 #include "components/bookmarks/core/browser/bookmark_model.h"
 #include "components/bookmarks/core/common/bookmark_constants.h"
 #include "components/startup_metric_utils/startup_metric_utils.h"
@@ skipping 158 matching lines @@
     NOTREACHED();
     return false;
   }
 
   std::string data;
   if (!SerializeData(&data))
     return false;
   writer_.WriteNow(data);
   return true;
 }