Bug 1024695 - Intermittent keyboard_settings_test.js |
 manipulate keyboard settings Launch built-in keyboard's settings page
  - Add waiting logic in switchToApp function when switching to keyboard
    app settings page.
Merge pull request #20548 from RudyLu/settings/Bug1024695-waitFor_keyboard_settings_frame

Bug 1024695 - Intermittent keyboard_settings_test.js | 
r=evanxd.