cros: Added a new function to quick unlock api for checking unfinished pins.

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 3135c2cd2358da593b134a41548aa2205e62d8c3..1aad288912c3d42f72bc6eded12a5ce319f71496 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -139,7 +139,7 @@
 #   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: 349
+#   For your editing convenience: highest ID currently used: 352
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -9081,6 +9081,51 @@
       If set to False, updates to components are disabled. However, some components are exempt from this policy: updates to any component that does not contain executable code, or does not significantly alter the behavior of the browser, or is critical for its security will not be disabled.
       Examples of such components include the certificate revocation lists and safe browsing data. ''',
     },
+    {
+      'name': 'PinUnlockMinimumLength',
+      'type': 'int',
+      'schema': { 'type': 'integer' },
+      'supported_on': ['chrome_os:55-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': False,
+      },
+      'example_value': 4,
+      'id': 350,
+      'caption': '''Sets the minimum length of the lock screen PIN.''',
+      'tags': [],
+      'desc': '''PINs created for the lock screen must have a length equal or greater than this value.''',
+    },
+    {
+      'name': 'PinUnlockMaximumLength',
+      'type': 'int',
+      'schema': { 'type': 'integer' },
+      'supported_on': ['chrome_os:55-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': False,
+      },
+      'example_value': 0,
+      'id': 351,
+      'caption': '''Sets the maximum length of the lock screen PIN.''',
+      'tags': [],
+      'desc': '''PINs created for the lock screen must have a length equal or less than this value. If this value is 0, there is no maximum length. If this value is not 0, but shorter than PinUnlockMinimumLength, this value will be the same as PinUnlockMinimumLength.''',
+    },
+    {
+      'name': 'PinUnlockAllowWeakPins',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['chrome_os:55-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': False,
+      },
+      'example_value': False,
+      'id': 352,
+      'caption': '''Enables users to set weak PINs for the lock screen PIN.''',
+      'tags': [],
+      'desc': '''If this is set to true users cannot set weak PINs for the lock screen PIN. Such PINs include pins whose digits are all the same number, or are increasing.''',
+    },
   ],
   'messages': {
     # Messages that are not associated to any policies.