Change includes of histogram.h to histogram_macros.h.

components/sync/syncable/on_disk_directory_backing_store.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 "components/sync/syncable/on_disk_directory_backing_store.h"
 
 #include "base/logging.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/stl_util.h"
 #include "components/sync/syncable/syncable-inl.h"
 
 namespace syncer {
 namespace syncable {
 
 namespace {
 
 enum HistogramResultEnum {
   FIRST_TRY_SUCCESS,
@@ skipping 90 matching lines @@
   NOTREACHED() << "Crashing to preserve corrupt sync database";
 }
 
 const base::FilePath& OnDiskDirectoryBackingStore::backing_file_path() const {
   DCHECK(CalledOnValidThread());
   return backing_file_path_;
 }
 
 }  // namespace syncable
 }  // namespace syncer