Revert 102184 - [Sync] use base::Time in sync

chrome/browser/sync/util/time.cc

Index: chrome/browser/sync/util/time.cc
===================================================================
--- chrome/browser/sync/util/time.cc	(revision 102185)
+++ chrome/browser/sync/util/time.cc	(working copy)
@@ -1,24 +0,0 @@
-// Copyright (c) 2011 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 "chrome/browser/sync/util/time.h"
-
-#include "base/i18n/time_formatting.h"
-#include "base/utf_string_conversions.h"
-
-namespace browser_sync {
-
-int64 TimeToProtoTime(const base::Time& t) {
-  return (t - base::Time::UnixEpoch()).InMilliseconds();
-}
-
-base::Time ProtoTimeToTime(int64 proto_t) {
-  return base::Time::UnixEpoch() + base::TimeDelta::FromMilliseconds(proto_t);
-}
-
-std::string GetTimeDebugString(const base::Time& t) {
-  return UTF16ToUTF8(base::TimeFormatFriendlyDateAndTime(t));
-}
-
-}  // namespace browser_sync