autotest: Increase Chrome first-render timeout

client/site_tests/desktopui_ChromeFirstRender/desktopui_ChromeFirstRender.py

 # Copyright (c) 2010 The Chromium OS 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, os, re, time
 from autotest_lib.client.bin import site_login, site_ui_test, site_utils
 from autotest_lib.client.common_lib import error
 
 class desktopui_ChromeFirstRender(site_ui_test.UITest):
     version = 1
 
 
     _LOGIN_SUCCESS_FILE = '/tmp/uptime-login-success'
     _FIRST_RENDER_FILE = '/tmp/uptime-chrome-first-render'
 
     def __parse_uptime(self, target_file):
         data = file(target_file).read()
         time = re.split(r' +', data.strip())[0]
         return float(time)
 
 
     def run_once(self):
         try:
             site_utils.poll_for_condition(
                 lambda: os.access(self._LOGIN_SUCCESS_FILE, os.F_OK),
                 site_login.TimeoutError('Timed out waiting for initial login'))
             site_utils.poll_for_condition(
                 lambda: os.access(self._FIRST_RENDER_FILE, os.F_OK),
-                site_login.TimeoutError('Timed out waiting for initial render'))
+                site_login.TimeoutError('Timed out waiting for initial render'),
+                timeout=60)
 
             start_time = self.__parse_uptime(self._LOGIN_SUCCESS_FILE)
             end_time = self.__parse_uptime(self._FIRST_RENDER_FILE)
             self.write_perf_keyval(
                 { 'seconds_chrome_first_tab': end_time - start_time })
         except IOError, e:
             logging.debug(e)
             raise error.TestFail('Login information missing')