Add facilities to fetch username/passwd credentials from private data

chrome/test/pyautolib/pyauto.py

 #!/usr/bin/python
 
 # Copyright (c) 2010 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.
 
 """PyAuto: Python Interface to Chromium's Automation Proxy.
 
 PyAuto uses swig to expose Automation Proxy interfaces to Python.
 For complete documentation on the functionality available,
@@ skipping 241 matching lines @@
     return ret
 
   @staticmethod
   def Kill(pid):
     """Terminate the given pid."""
     if PyUITest.IsWin():
       subprocess.call(['taskkill.exe', '/T', '/F', '/PID', str(pid)])
     else:
       os.kill(pid, signal.SIGTERM)
 
+  def GetPrivateInfo(self):
+    """Fetch info from private_tests_info.txt in private dir.
+
+    Returns:
+      a dictionary of items from private_tests_info.txt
+    """
+    private_file = os.path.join(
+        self.DataDir(), 'private', 'private_tests_info.txt')
+    assert os.path.exists(private_file), '%s missing' % private_file
+    return self.EvalDataFrom(private_file)
+
   def WaitUntil(self, function, timeout=-1, retry_sleep=0.25, args=[],
                 expect_retval=None):
     """Poll on a condition until timeout.
 
     Waits until the |function| evalues to |expect_retval| or until |timeout|
     secs, whichever occurs earlier.
 
     This is better than using a sleep, since it waits (almost) only as much
     as needed.
 
@@ skipping 1778 matching lines @@
     if self._options.verbose:
       verbosity = 2
     result = PyAutoTextTestRuner(verbosity=verbosity).run(pyauto_suite)
     del loaded_tests  # Need to destroy test cases before the suite
     del pyauto_suite
     sys.exit(not result.wasSuccessful())
 
 
 if __name__ == '__main__':
   Main()