Overscan calibration UI.

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.
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   </message>
   <message name="IDS_OPTIONS_SETTINGS_DISPLAY_OPTIONS_SET_PRIMARY" desc="Button label to set a display primary.">
     Make primary
   </message>
   <message name="IDS_OPTIONS_SETTINGS_DISPLAY_OPTIONS_APPLY_RESULT" desc="Button label to apply the current settings.">
     Apply
   </message>
   <message name="IDS_OPTIONS_SETTINGS_DISPLAY_OPTIONS_RESOLUTION" desc="Label to describe the resolution of the currently selected display.">
     Resolution:
   </message>
+  <message name="IDS_OPTIONS_SETTINGS_DISPLAY_OPTIONS_START_CALIBRATING_OVERSCAN" desc="Label to start calibrating the overscan preference.">
+    Start overscan calibration
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_DISPLAY_OPTIONS_FINISH_CALIBRATING_OVERSCAN" desc="Label to finish calibrating the overscan preference.">
+    Finish calibration
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_DISPLAY_OPTIONS_CLEAR_CALIBRATING_OVERSCAN" desc="Label to clear the current overscan preference.">
+    Clear
+  </message>
   <message name="IDS_OPTIONS_SETTINGS_KEYBOARD_LAYOUT_TEXT" desc="In the settings tab, the text of the keyboard layout label.">
     Keyboard layout:
   </message>
   <message name="IDS_OPTIONS_SETTINGS_CONNECT" desc="In the settings tab, the text on the button to connect to a network.">
     Connect
   </message>
   <message name="IDS_OPTIONS_SETTINGS_DISCONNECT" desc="In the settings tab, the text on the button to disconnect from a network.">
     Disconnect
   </message>
   <message name="IDS_OPTIONS_SETTINGS_FORGET" desc="In the settings tab, the text on the button to forget this network.">
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   <message name="IDS_LOGIN_MANAGED_BY_STATUS_NETWORK_ERROR" desc="Text for the network error status in 'Managed by DOMAIN' label on login screen.">
     Network error while communicating with the device management service.
   </message>
   <message name="IDS_LOGIN_MANAGED_BY_NOTICE" desc="Text for the notification bar on the login screen showing that this is a managed device.">
     This device is managed by <ph name="DOMAIN">$1<ex>yourdomain.com</ex></ph>.
   </message>
   <message name="IDS_LOGIN_MANAGED_REPORTING_HINT" desc="Text for the hint on reporting features displayed in the enterprise notification bar on the login screen.">
     Device usage may be tracked.
   </message>
 </grit-part>