[telemetry] fixing unit tests.

tools/telemetry/telemetry/android_browser_finder.py

 # Copyright (c) 2012 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.
 """Finds android browsers that can be controlled by telemetry."""
 
 import os
 import logging as real_logging
 import re
 import subprocess
 
@@ skipping 120 matching lines @@
     b = PossibleAndroidBrowser('android-jb-system-chrome',
                                options, adb,
                                CHROME_JB_SYSTEM_PACKAGE, False,
                                CHROME_COMMAND_LINE,
                                CHROME_ACTIVITY,
                                CHROME_JB_SYSTEM_DEVTOOLS_REMOTE_PORT)
     possible_browsers.append(b)
 
   # See if the "forwarder" is installed -- we need this to host content locally
   # but make it accessible to the device.
-  if len(possible_browsers) and not adb_commands.HasForwarder():
+  if len(possible_browsers) and not adb_commands.HasForwarder(None):
     logging.warn('telemetry detected an android device. However,')
     logging.warn('Chrome\'s port-forwarder app is not available.')
     logging.warn('To build:')
     logging.warn('  make -j16 host_forwarder device_forwarder')
     logging.warn('')
     logging.warn('')
     return []
   return possible_browsers