Move browser_test_runner.LoadAllTestsInModule to serially_executed_browser_test_case

telemetry/examples/browser_tests/simple_sharding_test.py

 # Copyright 2016 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 sys
+
 from telemetry.testing import serially_executed_browser_test_case
 
 
 class SimpleShardingTest(
     serially_executed_browser_test_case.SeriallyExecutedBrowserTestCase):
 
   def Test1(self):
     pass
 
   def Test2(self):
     pass
 
   def Test3(self):
     pass
 
   @classmethod
   def GenerateTestCases_PassingTest(cls, options):
     del options  # unused
     for i in xrange(10):
       yield 'passing_test_' + str(i), (i,)
 
   def PassingTest(self, a):
     self.assertGreaterEqual(a, 0)
+
+
+def load_tests(loader, tests, pattern):
+  del loader, tests, pattern  # Unused.
+  return serially_executed_browser_test_case.LoadAllTestsInModule(
+      sys.modules[__name__])