Creates a new test running script test_runner.py

build/android/pylib/browsertests/dispatch.py

Index: build/android/pylib/browsertests/dispatch.py
diff --git a/build/android/pylib/browsertests/dispatch.py b/build/android/pylib/browsertests/dispatch.py
index ce1bc5acc4be1dbf732a5d86136ae40be2e3051d..8457cf2f618986b8f1bad9770d3273bf9eabf35a 100644
--- a/build/android/pylib/browsertests/dispatch.py
+++ b/build/android/pylib/browsertests/dispatch.py
@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+"""Dispatches content_browsertests."""
+
 import logging
 import os
 import sys
@@ -17,10 +19,12 @@ from pylib.utils import report_results
 
 sys.path.insert(0,
                 os.path.join(constants.DIR_SOURCE_ROOT, 'build', 'util', 'lib'))
-
 from common import unittest_util
 
+
 def Dispatch(options):
+  """Dispatches all content_browsertests."""
+
   attached_devices = []
   if options.test_device:
     attached_devices = [options.test_device]
@@ -61,9 +65,9 @@ def Dispatch(options):
   # Get tests and split them up based on the number of devices.
   all_enabled = gtest_dispatch.GetAllEnabledTests(RunnerFactory,
                                                   attached_devices)
-  if options.gtest_filter:
+  if options.test_filter:
     all_tests = unittest_util.FilterTestNames(all_enabled,
-                                              options.gtest_filter)
+                                              options.test_filter)
   else:
     all_tests = _FilterTests(all_enabled)
 
@@ -84,17 +88,22 @@ def Dispatch(options):
       flakiness_server=options.flakiness_dashboard_server)
   report_results.PrintAnnotation(test_results)
 
+  return len(test_results.GetNotPass())
+
+
 def _FilterTests(all_enabled_tests):
   """Filters out tests and fixtures starting with PRE_ and MANUAL_."""
   return [t for t in all_enabled_tests if _ShouldRunOnBot(t)]
 
+
 def _ShouldRunOnBot(test):
   fixture, case = test.split('.', 1)
-  if _StartsWith(fixture, case, "PRE_"):
+  if _StartsWith(fixture, case, 'PRE_'):
     return False
-  if _StartsWith(fixture, case, "MANUAL_"):
+  if _StartsWith(fixture, case, 'MANUAL_'):
     return False
   return True
 
+
 def _StartsWith(a, b, prefix):
   return a.startswith(prefix) or b.startswith(prefix)