[Sync] Removing duplicated includes between cc and h files.

components/sync/engine_impl/syncer.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/engine_impl/syncer.h"
 
 #include <memory>
 
 #include "base/auto_reset.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "components/sync/base/cancelation_signal.h"
 #include "components/sync/base/syncer_error.h"
 #include "components/sync/base/unique_position.h"
 #include "components/sync/engine_impl/apply_control_data_updates.h"
 #include "components/sync/engine_impl/clear_server_data.h"
 #include "components/sync/engine_impl/commit.h"
 #include "components/sync/engine_impl/commit_processor.h"
-#include "components/sync/engine_impl/conflict_resolver.h"
 #include "components/sync/engine_impl/cycle/nudge_tracker.h"
 #include "components/sync/engine_impl/get_updates_delegate.h"
 #include "components/sync/engine_impl/get_updates_processor.h"
 #include "components/sync/engine_impl/net/server_connection_manager.h"
-#include "components/sync/engine_impl/syncer_types.h"
 #include "components/sync/syncable/directory.h"
 #include "components/sync/syncable/mutable_entry.h"
 
 using base::Time;
 using base::TimeDelta;
 using sync_pb::ClientCommand;
 
 namespace syncer {
 
 // TODO(akalin): We may want to propagate this switch up
@@ skipping 166 matching lines @@
 }
 
 bool Syncer::PostClearServerData(SyncCycle* cycle) {
   DCHECK(cycle);
   ClearServerData clear_server_data(cycle->context()->account_name());
   const SyncerError post_result = clear_server_data.SendRequest(cycle);
   return post_result == SYNCER_OK;
 }
 
 }  // namespace syncer