[chromeos] pyauto tests should auto login by default on chromeos

chrome/test/functional/chromeos_login.py

Index: chrome/test/functional/chromeos_login.py
diff --git a/chrome/test/functional/chromeos_login.py b/chrome/test/functional/chromeos_login.py
index 607a9a97051c9850f20e160258fa5b74e01b6264..db4995184094e5bacc9e09f266601a97d4221173 100755
--- a/chrome/test/functional/chromeos_login.py
+++ b/chrome/test/functional/chromeos_login.py
@@ -23,6 +23,9 @@ class ChromeosLogin(pyauto.PyUITest):
 
   assert os.geteuid() == 0, 'Need to run this test as root'
 
+  def ShouldAutoLogin(self):
+    return False
+
   def setUp(self):
     # We want a clean session_manager instance for every run,
     # so restart ui now.