Add a content setting property to disable first-use popups.

build/android/pylib/device_settings.py

 # Copyright 2014 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 logging
 
 from pylib import content_settings
 
 _LOCK_SCREEN_SETTINGS_PATH = '/data/system/locksettings.db'
 _ALTERNATE_LOCK_SCREEN_SETTINGS_PATH = (
@@ skipping 155 matching lines @@
 
     # Ensure that we never get random dialogs like "Unfortunately the process
     # android.process.acore has stopped", which steal the focus, and make our
     # automation fail (because the dialog steals the focus then mistakenly
     # receives the injected user input events).
     ('anr_show_background', 0),
 
     ('lockscreen.disabled', 1),
 
     ('screensaver_enabled', 0),
+
+    ('skip_first_use_hints', 1),
   ]),
   ('settings/system', [
     # Don't want devices to accidentally rotate the screen as that could
     # affect performance measurements.
     ('accelerometer_rotation', 0),
 
     ('lockscreen.disabled', 1),
 
     # Turn down brightness and disable auto-adjust so that devices run cooler.
     ('screen_brightness', 5),
     ('screen_brightness_mode', 0),
 
     ('user_rotation', 0),
   ]),
 ]
 
 NETWORK_DISABLED_SETTINGS = [
   ('settings/global', [
     ('airplane_mode_on', 1),
     ('wifi_on', 0),
   ]),
 ]