Convert more automation calls to the JSON interface.

chrome/test/functional/themes.py

 #!/usr/bin/env 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.
 
 import glob
 import logging
 import os
 
 import pyauto_functional  # Must be imported before pyauto
@@ skipping 46 matching lines @@
     self.assertFalse(self.GetThemeInfo())  # Verify there's no theme at startup
     crx_file = os.path.abspath(
         os.path.join(self.DataDir(), 'extensions', 'theme.crx'))
     self._SetThemeAndVerify(crx_file, 'camo theme')
 
   def testThemeReset(self):
     """Verify theme reset."""
     crx_file = os.path.abspath(
         os.path.join(self.DataDir(), 'extensions', 'theme.crx'))
     self.SetTheme(crx_file)
-    self.assertTrue(self.ResetToDefaultTheme())
+    self.ResetToDefaultTheme()
     self.assertFalse(self.GetThemeInfo())
 
   def testThemeUndo(self):
     """Verify theme undo."""
     crx_file = os.path.abspath(
         os.path.join(self.DataDir(), 'extensions', 'theme.crx'))
     self._SetThemeAndVerify(crx_file, 'camo theme')
     # Undo theme install.
     infobars = self.GetBrowserInfo()['windows'][0]['tabs'][0]['infobars']
     for index, infobar in enumerate(infobars):
@@ skipping 90 matching lines @@
       failed_themes = self._ReturnCrashingThemes(failed_themes, group_size,
                                                  urls)
       group_size = group_size // 2
 
     self.assertFalse(failed_themes,
                      'Theme(s) in failing group: %s' % failed_themes)
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()