Update android device provisioning script to set some reliability settings.

build/android/pylib/device_settings.py

Index: build/android/pylib/device_settings.py
diff --git a/build/android/pylib/device_settings.py b/build/android/pylib/device_settings.py
new file mode 100644
index 0000000000000000000000000000000000000000..031f740ad0b4a10bbe4af8848f30a0f85f91048c
--- /dev/null
+++ b/build/android/pylib/device_settings.py
@@ -0,0 +1,83 @@
+# Copyright (c) 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
+
+import content_settings
+
+
+def ConfigureContentSettingsDict(adb, desired_settings):
+  """Configures device content setings from a dictionary.
+
+  Many settings are documented at:
+    http://developer.android.com/reference/android/provider/Settings.Global.html
+    http://developer.android.com/reference/android/provider/Settings.Secure.html
+    http://developer.android.com/reference/android/provider/Settings.System.html
+
+  Many others are undocumented.
+
+  Args:
+    adb: An AndroidCommands instance for the device to configure.
+    desired_settings: A dict of {table: {key: value}} for all
+        settings to configure.
+  """
+  for table, key_value in sorted(desired_settings.iteritems()):
+    settings = content_settings.ContentSettings(table, adb)
+    for key, value in key_value.iteritems():
+      settings[key] = value
+    logging.info('\n%s %s', table, (80 - len(table)) * '-')
+    for key, value in sorted(settings.iteritems()):
+      logging.info('\t%s: %s', key, value)
+
+
+DETERMINISTIC_DEVICE_SETTINGS = {
+  'com.google.settings/partner': {
+    'use_location_for_services': 1,
+  },
+  'settings/global': {
+    # Disable "auto time" and "auto time zone" to avoid network-provided time
+    # to overwrite the device's datetime and timezone synchronized from host
+    # when running tests later. See b/6569849.
+    'auto_time': 0,
+    'auto_time_zone': 0,
+
+    'stay_on_while_plugged_in': 3,
+
+    'verifier_verify_adb_installs' : 0,
+  },
+  'settings/secure': {
+    # 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,
+
+    # Ensure Geolocation is enabled and allowed for tests.
+    'location_providers_allowed': 'gps,network',
+
+    'lockscreen.disabled': 1,
+
+    'screensaver_enabled': 0,
+  },
+  '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,
+  },
+}