Fix display and progressive disclosure for multi-line values in about:policy.

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 4376 matching lines @@
       <message name="IDS_POLICY_ENTRY_NAME" desc="The table header for the column in the policy table that contains the name of the policy.">
         Policy Name
       </message>
       <message name="IDS_POLICY_ENTRY_VALUE" desc="The table header for the column in the policy table that contains the value of the policy.">
         Policy Value
       </message>
       <message name="IDS_POLICY_ENTRY_STATUS" desc="The table header for the column in policy table that contains the status of the policy.">
         Status
       </message>
       <message name="IDS_POLICY_SHOW_MORE" desc="The text for the link that expands a policy value or policy status table cell.">
-        [Show more]
+        Show more
       </message>
       <message name="IDS_POLICY_HIDE" desc="The text for the link that hides overflowing text in a policy value or policy status table cell.">
-        [Hide]
+        Hide
       </message>
       <message name="IDS_POLICY_NEVER_FETCHED" desc="Indicates that a policy fetch was never performed before.">
         Never
       </message>
       <message name="IDS_POLICY_STATUS_OK" desc="Indicates that a policy fetch was successfully completed.">
         OK
       </message>
       <message name="IDS_POLICY_STATUS_NETWORK_ERROR" desc="Indicates that a policy fetch failed due to a network error.">
         Network error
       </message>
@@ skipping 10197 matching lines @@
     </messages>
     <structures fallback_to_english="true">
       <!-- Make sure these stay in sync with the structures in generated_resources.grd. -->
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
   </release>
 </grit>