Enable Search-key modifiers for extended key shortcuts.

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="pp_ifdef('chromeos')">. -->
 <grit-part>
   <!-- Idle Logout Dialog Strings -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog">
     Are you still there?
   </message>
   <message name="IDS_IDLE_LOGOUT_WARNING_RESTART" desc="Restart label for the idle logout dialog">
     This computer will reset in <ph name="LOGOUT_TIME_LEFT">$1<ex>20</ex></ph> seconds.
@@ skipping 2013 matching lines @@
     Disabled
   </message>
   <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_CAPS_LOCK"
            desc="The dropdown list item for 'Customize modifier keys' overlay">
     Caps Lock
   </message>
   <message name="IDS_OPTIONS_SETTINGS_CHANGE_LANGUAGE_AND_INPUT_SETTINGS"
            desc="The link to open 'Language and input settings' window.">
     Change language and input settings
   </message>
-  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_SEARCH_AS_FUNCTION"
-           desc="The checkbox to enable the Search key to act as a Function key">
-    Use the Search key to access extended keybindings.
-  </message>
   <message name="IDS_OPTIONS_NO_POINTING_DEVICES" desc="Text shown when there is neither a touchpad nor a mouse.">
     No mouse or touchpad was detected.
   </message>
   <message name="IDS_OPTIONS_POINTER_MOUSE_OVERLAY_TITLE" desc="The title for 'Pointer settings' overlay for Mouse only.">
     Mouse settings
   </message>
   <message name="IDS_OPTIONS_POINTER_TOUCHPAD_OVERLAY_TITLE" desc="The title for 'Pointer settings' overlay for Touchpad only.">
     Touchpad settings
   </message>
   <message name="IDS_OPTIONS_POINTER_TOUCHPAD_MOUSE_OVERLAY_TITLE" desc="The title for 'Pointer settings' overlay for Touchpad and Mouse.">
@@ skipping 558 matching lines @@
   <message name="IDS_OPTIONS_SETTINGS_INTERNET_CELLULAR_PRL_VERSION" desc="Label for cellular network modem PRL (Preferred Roaming List) version under chrome://options/internet">
     PRL version:
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_LEARN_MORE" desc="The text of the learn more link on the keyboard overlay.">
     Learn more
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_TITLE" desc="The title of the keyboard overlay.">
     Keyboard Overlay
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_INSTRUCTIONS" desc="The instructions for the keyboard overlay.">
-    Hold Control, Alt, or Shift to see keyboard shortcuts for those modifiers.
-  </message>
-  <message name="IDS_KEYBOARD_OVERLAY_INSTRUCTIONS_WITH_SEARCH" desc="The instructions for the keyboard overlay.">
     Hold Control, Alt, Shift, or Search to see keyboard shortcuts for those modifiers.
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_INSTRUCTIONS_HIDE" desc="The instruction for hiding the keyboard overlay.">
     Type Ctrl+Alt+/ or Escape to hide
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_F1" desc="The text in the keyboard overlay to explain the shortcut.">
     F1
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_F2" desc="The text in the keyboard overlay to explain the shortcut.">
     F2
@@ skipping 835 matching lines @@
   <message name="IDS_LOGIN_PUBLIC_ACCOUNT_INFO_FORMAT" desc="Template for text shown in the public account user pod, informing the user that this is a public, managed account.">
     This device is owned by <ph name="DOMAIN">$1<ex>yourdomain.com</ex></ph> and will be used by others after you.
   </message>
   <message name="IDS_LOGIN_PUBLIC_ACCOUNT_SIGNOUT_REMINDER" desc="Text shown in the public account user pod, reminding the user to log out.">
     Please remember to sign out when you're done.
   </message>
   <message name="IDS_LOGIN_PUBLIC_ACCOUNT_ENTER" desc="Label text for the sign-in button in the public account user pod.">
     Enter
   </message>
 </grit-part>