PyAuto tests derived from PolicyTestBase now clear the profile.

chrome/test/pyautolib/policy_base.py

 #!/usr/bin/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.
 
 """Base class for tests that need to update the policies enforced by Chrome.
 
 Subclasses can call SetPolicies with a dictionary of policies to install.
 SetPolicies can also be used to set the device policies on ChromeOS.
 
@@ skipping 269 matching lines @@
 
       self._WriteUserPolicyToken(user_dmtoken)
       # The browser has to be reloaded to make the user policy token cache
       # reload the file just written. The file can also be written only after
       # the cryptohome is mounted, after login.
       self.RestartBrowser(clear_profile=False)
 
   def tearDown(self):
     """Cleans up the files created by setUp."""
     if self.IsChromeOS():
+      pyauto.PyUITest.Logout(self)
+
+    pyauto.PyUITest.tearDown(self)
+
+    if self.IsChromeOS():
       self.StopHTTPServer(self._http_server)
       pyauto_utils.RemovePath(self._temp_data_dir)
-    pyauto.PyUITest.tearDown(self)
 
   def SetPolicies(self, user_policy=None, device_policy=None):
     """Enforces the policies given in the arguments as dictionaries.
 
     device_policy will be applied on ChromeOS only, and ignored on other
     platforms.
 
     On other platforms, this call is only available on non-official builds.
 
     This policies will have been installed after this call returns.
     """
     if self.IsChromeOS():
       self._SetCloudPolicies(user_mandatory=user_policy, device=device_policy)
       self.RefreshPolicies()
     elif not self.GetBrowserInfo()['properties']['is_official']:
       pyauto.PyUITest.SetPolicies(self, managed_platform=user_policy)
     else:
       raise AssertionError('Not available on this platform and build.')