Changing bisect_tester module to invoke run_test.py

scripts/slave/recipe_modules/bisect_tester/perf_test.py

 # Copyright 2015 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 os
 import re
 import time
 
 from . import parse_metric
 
@@ skipping 166 matching lines @@
     return False, []  # Give up; no results found.
   interaction, chart = metric.chart_name.split(Metric.OLD_STYLE_DELIMITER, 1)
   metric.interaction_record_name = interaction
   metric.chart_name = chart
   has_valid_value, value, _ = parse_metric.parse_chartjson_metric(
       results, metric.as_pair())
   return has_valid_value, value
 
 
 def _run_command(api, command, step_name):
-  # TODO(robertocn): Reevaluate this approach when adding support for non-perf
-  # tests and non-linux platforms.
-  if api.m.platform.is_linux and 'xvfb' not in command:
-    command = 'xvfb-run -a ' + command
   command_parts = command.split()
   stdout = api.m.raw_io.output()
   stderr = api.m.raw_io.output()
   try:
-    step_result = api.m.step(
-        step_name,
-        command_parts,
+    step_result = api.m.chromium.runtest(
+        test=command_parts[0],
+        args=command_parts[1:],
+        xvfb=True,

[prasadv, 2016/04/11 22:30:53]

"xvfb=True", should this be set for all platforms?

+        name=step_name,
         stdout=stdout,
         stderr=stderr)
     step_result.presentation.logs['Captured Output'] = (
         step_result.stdout or '').splitlines()
   except api.m.step.StepFailure as sf:
     sf.result.presentation.logs['Failure Output'] = (
         sf.result.stdout or '').splitlines()
     if sf.result.stderr:  # pragma: no cover
       sf.result.presentation.logs['stderr'] = (
         sf.result.stderr).splitlines()
     return sf.result.stdout, sf.result.stderr, sf.result.retcode
   return step_result.stdout, step_result.stderr, step_result.retcode