Implement policy for kNetworkPredictionOptions.

components/policy/resources/policy_templates.json

Index: components/policy/resources/policy_templates.json
diff --git a/components/policy/resources/policy_templates.json b/components/policy/resources/policy_templates.json
index 47f26f60d38f5d3c239b46bb5e8370fba5fbee04..d5a0e2f7caf2995fb00ea4f29586ba422fb9c736 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -311,6 +311,53 @@
       If this policy is left not set, this will be enabled but the user will be able to change it.''',
     },
     {
+      'name': 'NetworkPredictionOptions',
+      'type': 'int-enum',
+      'schema': {
+        'type': 'integer',
+        'enum': [ 0, 1, 2, 3 ],
+      },
+      'items': [
+        {
+          'name': 'NetworkPredictionAlways',
+          'value': 0,
+          'caption': '''Predict network actions on any network connection''',
+        },
+        {
+          'name': 'NetworkPredictionWifiOnly',
+          'value': 1,
+          'caption': '''Predict network actions on any network that is not
+          cellular''',
+        },
+        {
+          'name': 'NetworkPredictionNever',
+          'value': 2,
+          'caption': '''Do not predict network actions on any network connection''',
+        },
+        {
+          'name': 'NetworkPredictionUnset',
+          'value': 3,
+          'caption': '''Preference value has not been set''',

[Joao da Silva, 2014/07/30 07:57:32]

This value is not needed in the policy, since it's equivalent to not setting the
policy at all. Then the pref defaults to its default value, which is 3.

[Bence, 2014/07/30 13:19:31]

Done.

+        },
+      ],
+      'supported_on': ['chrome.*:8-', 'chrome_os:11-', 'android:30-'],

[Joao da Silva, 2014/07/30 07:57:32]

The version should be 38

[Bence, 2014/07/30 13:19:31]

Done.

What are the current/upcoming chrome_os and android versions?

[Joao da Silva, 2014/07/30 13:33:32]

Same version, they should all be 38.

[Bence, 2014/07/31 20:41:11]

Done.

+      'features': {
+        'can_be_recommended': True,
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': True,

[Joao da Silva, 2014/07/30 07:57:32]

The example value should be one of the int values

[Bence, 2014/07/30 13:19:31]

Done.

+      'id': 271,
+      'caption': '''Enable network prediction''',
+      'desc': '''Enables network prediction in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> and prevents users from changing this setting.
+
+      This controls DNS prefetching, TCP and SSL preconnection and prerendering of web pages.
+
+      If you set this preference to 'always', 'never', or 'WiFi only', users cannot change or override this setting in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
+
+      If this policy is left not set, network prediction will be enabled but the user will be able to change it.''',
+    },
+    {
       'name': 'WPADQuickCheckEnabled',
       'type': 'main',
       'schema': { 'type': 'boolean' },