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

components/sync/engine_impl/net/server_connection_manager.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/net/server_connection_manager.h"
 
 #include <errno.h>
-#include <stdint.h>
 
 #include <ostream>
-#include <string>
 #include <vector>
 
 #include "base/metrics/histogram.h"
 #include "build/build_config.h"
 #include "components/sync/base/cancelation_signal.h"
 #include "components/sync/engine_impl/net/url_translator.h"
 #include "components/sync/engine_impl/syncer.h"
 #include "components/sync/protocol/sync.pb.h"
 #include "components/sync/syncable/directory.h"
 #include "net/base/net_errors.h"
@@ skipping 308 matching lines @@
 
 std::ostream& operator<<(std::ostream& s, const struct HttpResponse& hr) {
   s << " Response Code (bogus on error): " << hr.response_code;
   s << " Content-Length (bogus on error): " << hr.content_length;
   s << " Server Status: "
     << HttpResponse::GetServerConnectionCodeString(hr.server_status);
   return s;
 }
 
 }  // namespace syncer