Added definition of the policy DeviceLoginScreenDomainAutoComplete.

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 c10cccdb7ae5ac6b686d6727c349dda2ec4f7b14..078cc45158cbaaa37c3266b4db8c67c9a29eb917 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -123,7 +123,7 @@
 #   persistent IDs for all fields (but not for groups!) are needed. These are
 #   specified by the 'id' keys of each policy. NEVER CHANGE EXISTING IDs,
 #   because doing so would break the deployed wire format!
-#   For your editing convenience: highest ID currently used: 296
+#   For your editing convenience: highest ID currently used: 297
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -7289,6 +7289,21 @@
       'desc': '''<ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> caches Apps and Extensions for installation by multiple users of a single device to avoid re-downloading them for each user.
       If this policy is not configured or the value is lower than 1 MB, <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> will use the default cache size.''',
     },
+    {
+      'name': 'DeviceLoginScreenDomainAutoComplete',
+      'type': 'string',
+      'schema': { 'type': 'string' },
+      'supported_on': [ 'chrome_os:44-'],
+      'device_only': True,
+      'features': {
+        'dynamic_refresh': True,
+      },
+      'example_value': 'students.school.edu',
+      'id': 297,
+      'caption': '''Enable domain name autocomplete during user sign in''',
+      'desc': '''If this policy is set to a blank string or not configured, <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> will not show an autocomplete option during user sign-in flow.
+      If this policy is set to a string representing a domain name, <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> will show an autocomplete option during user sign-in allowing the user to type in only his user name without the domain name extension.  The user will be able to overwrite this domain name extension.''',
+    },
   ],
   'messages': {
     # Messages that are not associated to any policies.