[Sync] Removing duplicate includes, part 2.

components/sync/driver/sync_prefs_unittest.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/driver/sync_prefs.h"
 
-#include <stdint.h>
-
-#include <map>
-
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
-#include "base/time/time.h"
 #include "components/pref_registry/testing_pref_service_syncable.h"
 #include "components/prefs/pref_notifier_impl.h"
 #include "components/prefs/pref_value_store.h"
 #include "components/prefs/testing_pref_service.h"
-#include "components/sync/base/model_type.h"
 #include "components/sync/driver/pref_names.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
 namespace {
 
 using ::testing::InSequence;
 using ::testing::StrictMock;
@@ skipping 222 matching lines @@
 
   EXPECT_EQ(versions.size(), versions2.size());
   for (auto map_iter : versions2) {
     EXPECT_EQ(versions[map_iter.first], map_iter.second);
   }
 }
 
 }  // namespace
 
 }  // namespace syncer