Add support for cc_perftests and other non-telemetry gtest based tests.

testing/scripts/common.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 argparse
 import contextlib
 import json
 import os
 import subprocess
 import sys
@@ skipping 12 matching lines @@
 
 
 def run_script(argv, funcs):
   def parse_json(path):
     with open(path) as f:
       return json.load(f)
   parser = argparse.ArgumentParser()
   # TODO(phajdan.jr): Make build-config-fs required after passing it in recipe.
   parser.add_argument('--build-config-fs')
   parser.add_argument('--paths', type=parse_json, default={})
+  # Properties describe the environment of the build, and are the same per
+  # script invocation.
   parser.add_argument('--properties', type=parse_json, default={})
+  # Args contains per-invocation arguments that potentially change the
+  # behavior of the script.
+  parser.add_argument('--args', type=parse_json, default=[])
 
   subparsers = parser.add_subparsers()
 
   run_parser = subparsers.add_parser('run')
   run_parser.add_argument(
       '--output', type=argparse.FileType('w'), required=True)
   run_parser.add_argument('--filter-file', type=argparse.FileType('r'))
   run_parser.set_defaults(func=funcs['run'])
 
   run_parser = subparsers.add_parser('compile_targets')
@@ skipping 81 matching lines @@
       key += 'passes'
       # TODO(dpranke): crbug.com/357867 ...  Why are we assigning result
       # instead of actual_result here. Do we even need these things to be
       # hashes, or just lists?
       data = result
     else:
       key += 'failures'
     results[key][test] = data
 
   return results