Move StatisticsRecorder out of histogram.cc/h for further refactoring.

net/curvecp/curvecp_transfer_unittest.cc

 // Copyright (c) 2011 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 <poll.h>
 
 #include "base/basictypes.h"
 #include "base/message_loop.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/statistics_recorder.h"
 #include "net/base/net_test_suite.h"
 #include "net/base/test_completion_callback.h"
 #include "net/curvecp/circular_buffer.h"
 #include "net/curvecp/received_block_list.h"
 #include "net/curvecp/rtt_and_send_rate_calculator.h"
 #include "net/curvecp/test_client.h"
 #include "net/curvecp/test_server.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
@@ skipping 284 matching lines @@
 
 */
 
 }  // namespace net
 
 int main(int argc, char**argv) {
   base::StatisticsRecorder recorder;
   NetTestSuite test_suite(argc, argv);
   return test_suite.Run();
 }