Add update menu item and app menu icon badge

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- android_chrome_strings.grd contains strings for Chrome for Android.
 
 FAQ:
   - How do I add, change, or remove a string?
       Just update this file.
   - Translations will happen automatically??
       Yes, indeed. Just add your string before the branch point and
       make the description good.
@@ skipping 1741 matching lines @@
 
       <!-- Toolbar button strings -->
       <message name="IDS_OPEN_TABS" desc="Text for button to enter the tab switcher and show tabs that are open on this device">
         Open tabs
       </message>
       <message name="IDS_BUTTON_NEW_TAB" desc="Button name for opening a new tab.">
         New tab
       </message>
 
       <!-- Main menu items -->
+      <message name="IDS_MENU_UPDATE" desc="Menu item for updating chrome. [CHAR-LIMIT=27]">
+        Update Chrome
+      </message>
+      <message name="IDS_MENU_UPDATE_SUMMARY_DEFAULT" desc="Summary string for update menu item explaing why Chrome should be updated. [CHAR-LIMIT=27]">
+        Newer version is available
+      </message>
       <message name="IDS_MENU_NEW_TAB" desc="Menu item for opening a new tab. [CHAR-LIMIT=27]">
         New tab
       </message>
       <message name="IDS_MENU_NEW_INCOGNITO_TAB" desc="Menu item for opening a new incognito tab that facilitates pseudononymous browsing. [CHAR-LIMIT=27]" meaning="Android menu">
         New incognito tab
       </message>
       <message name="IDS_MENU_BOOKMARKS" desc="Menu item for opening the bookmarks page that contains all the user's bookmarks. [CHAR-LIMIT=27]">
         Bookmarks
       </message>
       <message name="IDS_MENU_BOOKMARKS_OFFLINE_PAGES" desc="Menu item for opening the saved pages page that contains all the user's saved pages (bookmarks and offline). [CHAR-LIMIT=27]">
@@ skipping 520 matching lines @@
       </message>
       <message name="IDS_PHYSICAL_WEB_EMPTY_LIST" desc="The message displayed in place of a list of nearby URLs when there are no URLs to display.">
         No nearby Physical Web pages found
       </message>
       <message name="IDS_PHYSICAL_WEB_EMPTY_LIST_SCANNING" desc="The message displayed in place of a list of nearby URLs while still scanning for nearby URLs.">
         Looking for nearby Physical Web pages
       </message>
     </messages>
   </release>
 </grit>