Distinguish identical messages with different meanings

chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <grit base_dir="." current_release="1" latest_public_release="0"
       output_all_resource_defines="false" enc_check="möl" source_lang_id="en">
   <outputs>
     <output filename="_locales/am/messages.json" type="chrome_messages_json" lang="am"/>
     <output filename="_locales/ar/messages.json" type="chrome_messages_json" lang="ar"/>
     <output filename="_locales/bg/messages.json" type="chrome_messages_json" lang="bg"/>
     <output filename="_locales/bn/messages.json" type="chrome_messages_json" lang="bn"/>
     <output filename="_locales/ca/messages.json" type="chrome_messages_json" lang="ca"/>
@@ skipping 1089 matching lines @@
       </message>
       <message desc="This is an abbreviated ARIA widget role name shown on a braille display. When translating, try to find a contracted form of the translation for 'spin button' according to local conventions. If reasonable, use all lowercase and avoid punctuation to keep the number of characters as low as possible." name="IDS_CHROMEVOX_ROLE_SPINBUTTON_BRL">
         spnbtn
       </message>
       <message desc="Describes an element with the ARIA role status." name="IDS_CHROMEVOX_ROLE_STATUS">
         Status
       </message>
       <message desc="This is an abbreviated ARIA widget role name shown on a braille display. When translating, try to find a contracted form of the translation for 'status' according to local conventions. If reasonable, use all lowercase and avoid punctuation to keep the number of characters as low as possible." name="IDS_CHROMEVOX_ROLE_STATUS_BRL">
         sts
       </message>
-      <message desc="Describes an element with the ARIA role tab." name="IDS_CHROMEVOX_ROLE_TAB">
+      <message desc="Describes an element with the ARIA role tab." name="IDS_CHROMEVOX_ROLE_TAB" meaning="UI element">
         Tab
       </message>
       <message desc="This is an ARIA widget role name shown on a braille display. If the translation is longer than 5 characters, try to abbreviate it according to local conventions, and when doing so, if reasonable, use all lowercase and avoid punctuation to keep the number of characters as low as possible." name="IDS_CHROMEVOX_ROLE_TAB_BRL">
         tab
       </message>
       <message desc="Describes an element with the ARIA role table." name="IDS_CHROMEVOX_ROLE_TABLE">
         Table
       </message>
       <message desc="This is an ARIA widget role name shown on a braille display. If the translation is longer than 5 characters, try to abbreviate it according to local conventions, and when doing so, if reasonable, use all lowercase and avoid punctuation to keep the number of characters as low as possible." name="IDS_CHROMEVOX_ROLE_TABLE_BRL">
         table
@@ skipping 1424 matching lines @@
       </message>
       <message desc="Title of an article on keyboard shortcuts for Chromebooks" name="IDS_CHROMEVOX_CHROME_KEYBOARD_SHORTCUTS">
         Chromebook keyboard shortcuts
       </message>
       <message desc="Title of an article on how to use accessibility features of the Chromebook touch screen" name="IDS_CHROMEVOX_TOUCHSCREEN_ACCESSIBILITY">
         Use Chromebook touch screen accessibility features
       </message>
     </messages>
   </release>
 </grit>