[Android] Try harder to run every gtest within each try.

build/android/pylib/local/device/local_device_instrumentation_test_run.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 logging
 import os
 import posixpath
 import re
 import time
 
@@ skipping 317 matching lines @@
       resolved_tombstones = None
       for result in results:
         if result.GetType() == base_test_result.ResultType.CRASH:
           if not resolved_tombstones:
             resolved_tombstones = '\n'.join(tombstones.ResolveTombstones(
                 device,
                 resolve_all_tombstones=True,
                 include_stack_symbols=False,
                 wipe_tombstones=True))
           result.SetTombstones(resolved_tombstones)
-    return results
+    return results, None
 
   #override
   def _ShouldRetry(self, test):
     if 'RetryOnFailure' in test.get('annotations', {}):
       return True
 
     # TODO(jbudorick): Remove this log message once @RetryOnFailure has been
     # enabled for a while. See crbug.com/619055 for more details.
     logging.error('Default retries are being phased out. crbug.com/619055')
     return False
@@ skipping 17 matching lines @@
         timeout = v
         break
     else:
       logging.warning('Using default 1 minute timeout for %s', test_name)
       timeout = 60
 
     timeout *= cls._GetTimeoutScaleFromAnnotations(annotations)
 
     return timeout