Set drive as the default download folder

components/policy_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <grit-part>
 
   <message name="IDS_POLICY_DM_STATUS_SUCCESS" desc="Message indicating a successful device management server call.">
     Request succeeded
   </message>
   <message name="IDS_POLICY_DM_STATUS_REQUEST_INVALID" desc="Message indicating a bad request to the enterprise server.">
     Invalid request or request parameters
   </message>
   <message name="IDS_POLICY_DM_STATUS_REQUEST_FAILED" desc="Message indicating the request to the enterprise server failed in the network.">
@@ skipping 179 matching lines @@
   </message>
   <message name="IDS_POLICY_NETWORK_CONFIG_IMPORT_PARTIAL" desc="The text displayed in the status column when the corresponding network configuration policy is not standard conform and was imported partially.">
     The network configuration doesn't comply to the ONC standard. Parts of the configuration may not be imported.
   </message>
   <message name="IDS_POLICY_NETWORK_CONFIG_IMPORT_FAILED" desc="The text displayed in the status column when the corresponding network configuration policy is invalid.">
     The network configuration is invalid and couldn't be imported.
   </message>
   <message name="IDS_POLICY_JSON_PARSE_ERROR" desc="The text displayed in the status column when a policy that should have been specified in JSON format could not be parsed.">
     Failed to parse JSON format: <ph name="JSON_PARSE_ERROR">$1<ex>Unexpected token.</ex></ph>
   </message>
+  <message name="IDS_POLICY_SCOPE_ERROR" desc="Text displayed in the status column when an incorrect value is set for the policy scope.">

[bartfab (slow), 2014/03/14 13:43:45]

Nit: s/an incorrect value is set for the policy scope/a policy is set in an
unsupported scope/

+    Policy scope is not supported.
+  </message>
   <message name="IDS_POLICY_OK" desc="Text displayed in the status column when a valid value is set for a policy.">
     OK
   </message>
   <message name="IDS_POLICY_UNSET" desc="Text displayed in the status column when no value is set for a policy.">
     Not set.
   </message>
   <message name="IDS_POLICY_UNKNOWN" desc="Text displayed in the status column when a policy name is not recognized.">
     Unknown policy.
   </message>
   <message name="IDS_POLICY_INVALID_BOOKMARK" desc="Text displayed in the status column when an entry of the ManagedBookmarks policy is not a valid bookmark.">
@@ skipping 90 matching lines @@
   <if expr="is_android or is_ios">
     <message name="IDS_POLICY_MANAGED_BOOKMARKS" desc="Mobile: name of the managed bookmarks folder">
       <ph name="DOMAIN">$1<ex>google.com</ex></ph> bookmarks
     </message>
     <message name="IDS_POLICY_MANAGED_BOOKMARKS_DEFAULT_NAME" desc="Mobile: name of the managed bookmarks folder when the management domain can't be determined.">
       Managed bookmarks
     </message>
   </if>
 
 </grit-part>