Implement cloud policy invalidations using the invalidation service framework.

chrome/app/policy/policy_templates.json

 {
 # policy_templates.json - Metafile for policy templates
 #
 # The content of this file is evaluated as a Python expression.
 #
 # This file is used as input to generate the following policy templates:
 # ADM, ADMX+ADML, MCX/plist and html documentation.
 #
 # Policy templates are user interface definitions or documents about the
 # policies that can be used to configure Chrome. Each policy is a name-value
@@ skipping 94 matching lines @@
 #   templates and documentation. The policy definition list that Chrome sees
 #   will include policies marked with 'future'. If a WIP policy isn't meant to
 #   be seen by the policy providers either, the 'supported_on' key should be set
 #   to an empty list.
 #
 # IDs:
 #   Since a Protocol Buffer definition is generated from this file, unique and
 #   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: 226
+#   For your editing convenience: highest ID currently used: 228
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
 #     $1 -> Google Chrome / Chromium
 #     $2 -> Google Chrome OS / Chromium OS
 #     $3 -> Google Chrome Frame / Chromium Frame
 #     $6 is reserved for doc_writer
 #
 # Device Policy:
 #   An additional flag device_only (optional, defaults to False) indicates
@@ skipping 2303 matching lines @@
       'example_value': 3600000,
       'id': 56,
       'caption': '''Refresh rate for user policy''',
       'desc': '''Specifies the period in milliseconds at which the device management service is queried for user policy information.
 
       Setting this policy overrides the default value of 3 hours. Valid values for this policy are in the range from 1800000 (30 minutes) to 86400000 (1 day). Any values not in this range will be clamped to the respective boundary.
 
       Leaving this policy not set will make <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> use the default value of 3 hours.''',
     },
     {
+      'name': 'MaxInvalidationFetchDelay',
+      'type': 'int',
+      'schema': { 'type': 'integer' },
+      'supported_on': ['chrome.*:30-', 'chrome_os:0.30-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': 10000,
+      'id': 228,
+      'caption': '''Maximum fetch delay after a policy invalidation''',
+      'desc': '''Specifies the maximum delay in milliseconds between receiving a policy invalidation and fetching the new policy from the device management service.
+
+      Setting this policy overrides the default value of 5000 milliseconds. Valid values for this policy are in the range from 1000 (1 second) to 300000 (5 minutes). Any values not in this range will be clamped to the respective boundary.
+
+      Leaving this policy not set will make <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> use the default value of 5000 milliseconds.''',
+    },
+    {
       'name': 'ChromeFrameRendererSettings',
       'type': 'group',
       'caption': '''Default HTML renderer for <ph name="PRODUCT_FRAME_NAME">$3<ex>Google Chrome Frame</ex></ph>''',
       'desc': '''Allows you to configure the default HTML renderer when <ph name="PRODUCT_FRAME_NAME">$3<ex>Google Chrome Frame</ex></ph> is installed.
       The default setting is to allow the host browser do the rendering, but you
       can optionally override this and have <ph name="PRODUCT_FRAME_NAME">$3<ex>
       Google Chrome Frame</ex></ph> render HTML pages by default.''',
       'policies': [
         {
           'name': 'ChromeFrameRendererSettings',
@@ skipping 2935 matching lines @@
       'desc': '''Text appended in parentheses to the policy name to indicate that it has been deprecated''',
       'text': 'deprecated',
     },
     'doc_recommended': {
       'desc': '''Text appended in parentheses next to the policies top-level container to indicate that those policies are of the Recommended level''',
       'text': 'Default Settings (users can override)',
     },
   },
   'placeholders': [],
 }