Remove all occurrences of "using std::string".

webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimators_test.cc

 /*
  *  Copyright (c) 2013 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_WIN
 #include <sys/types.h>
 #include <unistd.h>
 #endif
 
 #include <algorithm>
 #include <sstream>
 
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/random.h"
 #include "webrtc/modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
 #include "webrtc/modules/remote_bitrate_estimator/test/bwe_test.h"
 #include "webrtc/modules/remote_bitrate_estimator/test/packet_receiver.h"
 #include "webrtc/modules/remote_bitrate_estimator/test/packet_sender.h"
 #include "webrtc/test/testsupport/fileutils.h"
 
-using std::string;
-
 namespace webrtc {
 namespace testing {
 namespace bwe {
 
 // This test fixture is used to instantiate tests running with adaptive video
 // senders.
 class BweFeedbackTest
     : public BweTest,
       public ::testing::TestWithParam<BandwidthEstimatorType> {
  public:
@@ skipping 181 matching lines @@
   for (int i = 0; i < 2; ++i) {
     offset_ms[i] = std::max(0, 5000 * i + random_.Rand(-1000, 1000));
   }
 
   RunFairnessTest(GetParam(), 1, 1, 300, 2000, 1000, kRttMs, kMaxJitterMs,
                   offset_ms);
 }
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc