Componentize IDS_CLOSE string so that it can be shared with iOS.

components/components_strings.grd

 <?xml version="1.0" encoding="utf-8"?>
 
 <grit latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/components_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="components_strings_am.pak" type="data_package" lang="am" />
     <output filename="components_strings_ar.pak" type="data_package" lang="ar" />
@@ skipping 192 matching lines @@
       <part file="ssl_errors_strings.grdp" />
       <part file="sync_ui_strings.grdp" />
       <part file="translate_strings.grdp" />
       <part file="undo_strings.grdp" />
       <part file="version_ui_strings.grdp" />
 
       <!-- Generic terms -->
       <message name="IDS_CANCEL" desc="Used for Cancel on buttons">
         Cancel
       </message>
+      <message name="IDS_CLOSE" desc="A generic term for Close on buttons and menus.">
+        Close
+      </message>
       <message name="IDS_DONE" desc="A generic term for Done on buttons and menus.">
         Done
       </message>
       <message name="IDS_LEARN_MORE" desc="Learn more text">
         Learn more
       </message>
       <message name="IDS_OK" desc="Used for OK on buttons">
         OK
       </message>
       <message name="IDS_UTILITY_PROCESS_JSON_PARSER_NAME" desc="The name of the utility process used for parsing JSON files.">
         JSON Parser
       </message>
     </messages>
   </release>
 </grit>