[Sync] Move //sync to //components/sync.

sync/util/logging.h

-// 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.
-
-#ifndef SYNC_UTIL_LOGGING_H_
-#define SYNC_UTIL_LOGGING_H_
-
-#include "base/logging.h"
-
-// TODO(akalin): This probably belongs in base/ somewhere.
-
-namespace tracked_objects {
-class Location;
-}  // namespace tracked_objects
-
-namespace syncer {
-
-bool VlogIsOnForLocation(const tracked_objects::Location& from_here,
-                         int verbose_level);
-
-}  // namespace syncer
-
-#define VLOG_LOC_STREAM(from_here, verbose_level)                       \
-  logging::LogMessage(from_here.file_name(), from_here.line_number(),   \
-                      -verbose_level).stream()
-
-#define DVLOG_LOC(from_here, verbose_level)                             \
-  LAZY_STREAM(                                                          \
-      VLOG_LOC_STREAM(from_here, verbose_level),                        \
-      ::logging::DEBUG_MODE &&                                          \
-      (VLOG_IS_ON(verbose_level) ||                                     \
-       ::syncer::VlogIsOnForLocation(from_here, verbose_level)))        \
-
-#endif  // SYNC_UTIL_LOGGING_H_