Add support for cellular geolocation

components/policy/resources/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 8793 matching lines @@
       <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> will
       automatically contact the Quirks Server and download configuration files,
       if available, and store them on the device.  Such files might, for
       example, be used to improve display quality of attached monitors.''',
     },
     {
       'name': 'SystemTimezoneAutomaticDetection',
       'type': 'int-enum',
       'schema': {
         'type': 'integer',
-        'enum': [ 0, 1, 2, 3 ],
+        'enum': [ 0, 1, 2, 3, 4 ],
       },
       'items': [
         {
           'name': 'TimezoneAutomaticDetectionUsersDecide',
           'value': 0,
           'caption': '''Let users decide.''',
         },
         {
           'name': 'TimezoneAutomaticDetectionDisabled',
           'value': 1,
           'caption': '''Never auto-detect timezone.''',
         },
         {
           'name': 'TimezoneAutomaticDetectionIPOnly',
           'value': 2,
           'caption': '''Always use coarse timezone detection.''',
         },
         {
           'name': 'TimezoneAutomaticDetectionSendWiFiAccessPoints',
           'value': 3,
-          'caption': '''Always send WiFi acess-points to server while resolving timezone.''',
+          'caption': '''Always send WiFi access-points to server while resolving timezone.''',
+        },
+        {
+          'name': 'TimezoneAutomaticDetectionSendAllLocationInfo',
+          'value': 4,
+          'caption': '''Always send any available location signals to the server while resolving timezone.''',
         },
       ],
       'supported_on': ['chrome_os:53-'],
       'device_only': True,
       'features': {
         'dynamic_refresh': True,
       },
       'example_value': 0,
       'id': 326,
       'caption': '''Configure the automatic timezone detection method''',
       'tags': ['google-sharing'],
       'desc': '''When this policy is set, automatic timezone detection flow will be in one of the following ways depending on the value of the setting:
 
       If set to TimezoneAutomaticDetectionUsersDecide, users would be able to control automatic timezone detection using normal controls in chrome://settings.
 
       If set to TimezoneAutomaticDetectionDisabled, automatic timezone controls in chrome://settings will be disabled. Automatic timezone detection will be always off.
 
       If set to TimezoneAutomaticDetectionIPOnly, timezone controls in chrome://settings will be disabled. Automatic timezone detection will be always on. Timezone detection will use IP-only method to resolve location.
 
       If set to TimezoneAutomaticDetectionSendWiFiAccessPoints, timezone controls in chrome://settings will be disabled. Automatic timezone detection will be always on. The list of visible WiFi access-points will be always sent to Geolocation API server for fine-grained timezone detection.
 
+      If set to TimezoneAutomaticDetectionSendAllLocationInfo, timezone controls in chrome://settings will be disabled. Automatic timezone detection will be always on. Location information (such as WiFi access-points, reachable Cell Towers, GPS) will be sent to a server for fine-grained timezone detection.
+
       If this policy is not set, it will behave as if TimezoneAutomaticDetectionUsersDecide is set.
 
       If SystemTimezone policy is set, it overrides this policy. In this case automatic timezone detection is completely disabled.''',
     },
     {
       'name': 'TaskManagerEndProcessEnabled',
       'caption': '''Enables ending processes in Task Manager''',
       'desc': '''Enables ending processes in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>'s Task Manager.
 
       If set to false, the 'End process' button is disabled in the Task Manager.
@@ skipping 711 matching lines @@
       '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)',
     },
     'doc_complex_policies_on_windows': {
       'desc': '''Text pointing the user to a help article for complex policies on Windows''',
       'text': '''encoded as a JSON string, for details see <ph name="COMPLEX_POLICIES_URL">https://www.chromium.org/administrators/complex-policies-on-windows<ex>https://www.chromium.org/administrators/complex-policies-on-windows</ex></ph>''',
     },
   },
   'placeholders': [],
 }