Fixed lint warnings in webrtc/modules/remote_bitrate_estimator

webrtc/modules/remote_bitrate_estimator/test/bwe.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_TEST_BWE_H_
 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_TEST_BWE_H_
 
+#include <list>
+#include <map>
 #include <sstream>
+#include <string>
 
 #include "webrtc/test/testsupport/gtest_prod_util.h"
 #include "webrtc/modules/remote_bitrate_estimator/test/packet.h"
 #include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
 #include "webrtc/modules/remote_bitrate_estimator/test/bwe_test_framework.h"
 
 namespace webrtc {
 namespace testing {
 namespace bwe {
 
@@ skipping 160 matching lines @@
                            BitrateObserver* observer,
                            Clock* clock);
 
 BweReceiver* CreateBweReceiver(BandwidthEstimatorType type,
                                int flow_id,
                                bool plot);
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_TEST_BWE_H_