[devil] Extract logging common behavior to its own module.

devil/devil/android/tools/keyboard.py

Index: devil/devil/android/tools/keyboard.py
diff --git a/devil/devil/android/tools/keyboard.py b/devil/devil/android/tools/keyboard.py
index 3a74692680c3062fd8558f5f504e1486664bc552..c5cb6149099aad9cf43273be58ad61449ee68b3a 100755
--- a/devil/devil/android/tools/keyboard.py
+++ b/devil/devil/android/tools/keyboard.py
@@ -19,7 +19,7 @@ if __name__ == '__main__':
 from devil import base_error
 from devil.android.sdk import keyevent
 from devil.android.tools import script_common
-from devil.utils import run_tests_helper
+from devil.utils import logging_common
 
 
 _KEY_MAPPING = {
@@ -89,11 +89,11 @@ class MultipleDevicesError(base_error.BaseError):
 def main(raw_args):
   parser = argparse.ArgumentParser(
       description="Use your keyboard as your phone's keyboard.")
+  logging_common.AddLoggingArguments(parser)
   script_common.AddDeviceArguments(parser)
-  parser.add_argument('-v', '--verbose', action='count', help='print more')
   args = parser.parse_args(raw_args)
 
-  run_tests_helper.SetLogLevel(args.verbose)
+  logging_common.InitializeLogging(args)
 
   devices = script_common.GetDevices(args.devices, None)
   if len(devices) > 1: