Move site_chrome_test, site_logging, site_log_reader, site_crash_test into cros dir.

client/site_tests/desktopui_FlashSanityCheck/desktopui_FlashSanityCheck.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, re, time
-from autotest_lib.client.bin import test, utils, site_log_reader
+from autotest_lib.client.bin import test, utils
 from autotest_lib.client.common_lib import error
-from autotest_lib.client.cros import ui
+from autotest_lib.client.cros import log_reader, ui
 
 class desktopui_FlashSanityCheck(test.test):
     version = 1
 
 
     def run_once(self, time_to_wait=25):
         # take a snapshot from /var/log/messages.
-        self._log_reader = site_log_reader.LogReader()
+        self._log_reader = log_reader.LogReader()
         self._log_reader.set_start_by_current()
 
         # open browser to youtube.com.
         session = ui.ChromeSession('http://www.youtube.com')
         # wait some time till the webpage got fully loaded.
         time.sleep(time_to_wait)
         session.close()
         # Question: do we need to test with other popular flash websites?
 
         # any better pattern matching?
         if self._log_reader.can_find(' Received crash notification for '):
             # well, there is a crash. sample crash message:
             # 2010-10-04T19:13:17.923673-07:00 localhost crash_reporter[30712]:
             # Received crash notification for chrome[29888] sig 11 (ignoring)
             raise error.TestFail('Browser crashed during test.\nMessage '
                                  'from /var/log/messages:\n%s' % new_msg)