Change hint for the local machine name

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>
   <!-- Idle logout dialog for retail mode -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog. Used in retail mode only.">
     Are you still there?
   </message>
@@ skipping 6177 matching lines @@
     <ph name="LINE_BREAK_AND_EMPTY_LINE">&lt;br&gt;&lt;br&gt;</ph>
     If this is unexpected, please contact support.
   </message>
   <message name="IDS_ENTERPRISE_ENROLLMENT_ASSET_ID_LABEL" desc="Label for asset id text box on the device naming screen in the enterprise enrollment dialog.">
     Asset Identifier
   </message>
   <message name="IDS_ENTERPRISE_ENROLLMENT_LOCATION_LABEL" desc="Label for location tex box on the device naming screen in the enterprise enrollment dialog.">
     Device Location
   </message>
   <message name="IDS_AD_MACHINE_NAME_INPUT_LABEL" desc="Label for machine name input field on the AD domain join screen. User should tell us the name of his machine.">
-    Computer name
+    Chromebook machine name
   </message>
   <message name="IDS_AD_DOMAIN_JOIN_WELCOME_MESSAGE" desc="Welcome message on the AD domain join screen.">
     Join AD domain
   </message>
   <message name="IDS_AD_DOMAIN_AUTH_WELCOME_MESSAGE" desc="Welcome message on the AD Authentication user screen. Include the domain (realm) the machine joined to">
     Login to <ph name="REALM">$1<ex>example.com</ex></ph>
   </message>
   <message name="IDS_AD_LOGIN_USER" desc="Label for userPrincipalName input field on both AD domain join and AD Authentication user screens. Looks like user@example.com where example.com is realm">
     Username (e.g. user@example.com)
   </message>
@@ skipping 366 matching lines @@
   <message name="IDS_PRINT_JOB_NOTIFICATION_PAUSE_BUTTON" desc="Text on the button for the user to pause the current print job.">
     Pause printing
   </message>
   <message name="IDS_PRINT_JOB_NOTIFICATION_RESUME_BUTTON" desc="Text on the button for the user to resume the current print job.">
     Resume printing
   </message>
   <message name="IDS_PRINT_JOB_NOTIFICATION_GET_HELP_BUTTON" desc="Text on the button for the user to get help about the current print job.">
     Get help
   </message>
 </grit-part>