Fixes dispatch files to return exit codes in several places

build/android/pylib/gtest/dispatch.py

 # Copyright (c) 2013 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.
 
 """Dispatches GTests."""
 
 import copy
 import fnmatch
 import logging
 import os
@@ skipping 194 matching lines @@
 
   If options.use_emulator is True, all tests will be run in new emulator
   instance.
 
   Args:
     options: options for running the tests.
 
   Returns:
     base_test_result.TestRunResults object with the results of running the tests
   """
+  results = base_test_result.TestRunResults()
+
   if options.test_suite == 'help':
     _ListTestSuites()
-    return 0
+    return (results, 0)
 
   if options.use_xvfb:
     framebuffer = xvfb.Xvfb()
     framebuffer.Start()
 
   all_test_suites = _FullyQualifiedTestSuites(options.exe, options.test_suite,
                                               options.build_type)
-  results = base_test_result.TestRunResults()
   exit_code = 0
   for suite_name, suite_path in all_test_suites:
     # Give each test suite its own copy of options.
     test_options = copy.deepcopy(options)
     test_options.test_suite = suite_path
     test_results, test_exit_code = _RunATestSuite(test_options, suite_name)
     results.AddTestRunResults(test_results)
     if test_exit_code and exit_code != constants.ERROR_EXIT_CODE:
       exit_code = test_exit_code
 
   if options.use_xvfb:
     framebuffer.Stop()
 
   return (results, exit_code)