test_runner.py Add --fast-local-dev flag

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index e16acbf16ed9005cb853efc6cc33e9d3636be13b..e4d5d791c1c22c31eb9215cb996ea22ab8ca81ba 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -113,6 +113,20 @@ def AddCommonOptions(parser):
                      help='If set, will dump logcats recorded during test run '
                           'to directory. File names will be the device ids.')
 
+  class FastLocalDevAction(argparse.Action):
+    def __call__(self, parser, namespace, values, option_string=None):
+      namespace.verbose_count = max(namespace.verbose_count, 1)
+      namespace.num_retries = 0
+      namespace.enable_device_cache = True
+      namespace.skip_clear_data = True
+      namespace.extract_test_list_from_filter = True
+
+  group.add_argument('--fast-local-dev', type=bool, nargs=0,
+                     action=FastLocalDevAction,
+                     help='Alias for: --verbose --num-retries=0 '
+                          '--enable-device-cache --skip-clear-data '
+                          '--extract-test-list-from-filter')
+
 def ProcessCommonOptions(args):
   """Processes and handles all common options."""
   run_tests_helper.SetLogLevel(args.verbose_count)