Updating keyboard overlay for previous/next user in multi profile mode

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="chromeos">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <message name="IDS_CHROMEBOOK" desc="The localized name for Chromebook.">
     Chromebook
   </message>
   <message name="IDS_CHROMEBOX" desc="The localized name for Chromebox">
@@ skipping 4146 matching lines @@
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_NEW_TAB" desc="The text in the keyboard overlay to explain the shortcut.">
     New tab
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_NEW_TERMINAL" desc="The text in the keyboard overlay to explain the shortcut (Open a new terminal tab).">
     New terminal
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_NEW_WINDOW" desc="The text in the keyboard overlay to explain the shortcut.">
     New window
   </message>
+  <message name="IDS_KEYBOARD_OVERLAY_NEXT_USER" desc="The text in the keyboard overlay to explain the shortcut (Switch to next user).">
+    Next user
+  </message>
   <message name="IDS_KEYBOARD_OVERLAY_NEXT_WINDOW" desc="The text in the keyboard overlay to explain the shortcut (go to the next window).">
     Next window
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_NEXT_WORD" desc="The text in the keyboard overlay to explain the shortcut (move the text cursor to the end of the next word).">
     Next word
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_OPEN" desc="The text in the keyboard overlay to explain the shortcut (open a file).">
     Open
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_OPEN_ADDRESS_IN_NEW_TAB" desc="The text in the keyboard overlay to explain the shortcut.">
@@ skipping 10 matching lines @@
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_PAGE_UP" desc="The text in the keyboard overlay to explain the shortcut (Page up).">
     Page up
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_PASTE" desc="The text in the keyboard overlay to explain the shortcut.">
     Paste
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_PASTE_AS_PLAIN_TEXT" desc="The text in the keyboard overlay to explain the shortcut.">
     Paste as plain text
   </message>
+  <message name="IDS_KEYBOARD_OVERLAY_PREVIOUS_USER" desc="The text in the keyboard overlay to explain the shortcut (Switch to previous user).">
+    Previous user
+  </message>
   <message name="IDS_KEYBOARD_OVERLAY_PREVIOUS_WINDOW" desc="The text in the keyboard overlay to explain the shortcut (go to the previous window).">
     Previous window
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_PREVIOUS_WORD" desc="The text in the keyboard overlay to explain the shortcut (move the text cursor to the start of the previous word).">
     Previous word
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_PRINT" desc="The text in the keyboard overlay to explain the shortcut.">
     Print
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_RELOAD_CURRENT_PAGE" desc="The text in the keyboard overlay to explain the shortcut.">
@@ skipping 1264 matching lines @@
   <message name="IDS_SET_TIME_BUTTON_CLOSE" desc="Text for the button to close the window.">
     Done
   </message>
   <message name="IDS_SET_TIME_DATE_LABEL" desc="Label for the date input element.">
     System date
   </message>
   <message name="IDS_SET_TIME_TIME_LABEL" desc="Label for the time input element.">
     System time
   </message>
 </grit-part>