[telemetry] - Rename benchmark_rerun_options to trace_rerun_options.

tools/telemetry/telemetry/results/chart_json_output_formatter.py

 # Copyright 2014 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.
 
 import collections
 import itertools
 import json
 
 from telemetry.results import output_formatter
 from telemetry.value import summary as summary_module
@@ skipping 36 matching lines @@
 
     # This intentionally overwrites the trace if it already exists because this
     # is expected of output from the buildbots currently.
     # See: crbug.com/413393
     charts[chart_name][trace_name] = value.AsDict()
 
   result_dict = {
     'format_version': '0.1',
     'benchmark_name': benchmark_metadata.name,
     'benchmark_description': benchmark_metadata.description,
-    'benchmark_rerun_options': benchmark_metadata.rerun_options,
+    'trace_rerun_options': benchmark_metadata.rerun_options,
     'charts': charts,
   }
 
   return result_dict
 
 # TODO(eakuefner): Transition this to translate Telemetry JSON.
 class ChartJsonOutputFormatter(output_formatter.OutputFormatter):
   def __init__(self, output_stream, benchmark_metadata):
     super(ChartJsonOutputFormatter, self).__init__(output_stream)
     self._benchmark_metadata = benchmark_metadata
 
   def Format(self, page_test_results):
     json.dump(_ResultsAsChartDict(
         self._benchmark_metadata,
         page_test_results.all_page_specific_values,
         page_test_results.all_summary_values),
               self.output_stream, indent=2)
     self.output_stream.write('\n')