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

sync/util/get_session_name_linux.cc

-// Copyright (c) 2013 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 "sync/util/get_session_name_linux.h"
-
-#include <limits.h>  // for HOST_NAME_MAX
-#include <unistd.h>  // for gethostname()
-
-#include "base/linux_util.h"
-
-namespace syncer {
-namespace internal {
-
-std::string GetHostname() {
-  char hostname[HOST_NAME_MAX];
-  if (gethostname(hostname, HOST_NAME_MAX) == 0)  // Success.
-    return hostname;
-  return base::GetLinuxDistro();
-}
-
-}  // namespace internal
-}  // namespace syncer
-