fix the error of emulator.py

build/android/emulator.py

 #!/usr/bin/env python
 #
 # 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.
 
 """Provides an interface to start and stop Android emulator.
 
 Assumes system environment ANDROID_NDK_ROOT has been set.
 
@@ skipping 178 matching lines @@
         os.unlink(full_name)
 
   def ConfirmLaunch(self, wait_for_boot=False):
     """Confirm the emulator launched properly.
 
     Loop on a wait-for-device with a very small timeout.  On each
     timeout, check the emulator process is still alive.
     After confirming a wait-for-device can be successful, make sure
     it returns the right answer.
     """
-    a = android_commands.AndroidCommands(self.device, False)
+    a = android_commands.AndroidCommands(self.device)
     seconds_waited = 0
     number_of_waits = 2  # Make sure we can wfd twice
     adb_cmd = "adb -s %s %s" % (self.device, 'wait-for-device')
     while seconds_waited < self._LAUNCH_TIMEOUT:
       try:
         run_command.RunCommand(adb_cmd,
                                timeout_time=self._WAITFORDEVICE_TIMEOUT,
                                retry_count=1)
         number_of_waits -= 1
         if not number_of_waits:
@@ skipping 33 matching lines @@
     """Install a handler to kill the emulator when we exit unexpectedly."""
     for sig in self._SIGNALS:
       signal.signal(sig, self._ShutdownOnSignal)
 
 def main(argv):
   Emulator(True).Launch(True)
 
 
 if __name__ == '__main__':
   main(sys.argv)