Handle login and password error for the domain join

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Chrome OS-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 6219 matching lines @@
   <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.">
     Chromebook machine name
   </message>
   <message name="IDS_AD_DOMAIN_JOIN_WELCOME_MESSAGE" desc="Welcome message on the AD domain join screen.">
-    Join AD domain
+    Join device to 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>
+    Sign in 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>
   <message name="IDS_AD_LOGIN_PASSWORD" desc="Label for Password input field on both AD domain join and AD Authorization user screens..">
     Password
   </message>
   <message name="IDS_AD_PASSWORD_CHANGE_OLD_PASSWORD" desc="Old password field hint on the Active Directory password change dialog.">
     Enter old password
   </message>
   <message name="IDS_AD_PASSWORD_CHANGE_NEW_PASSWORD" desc="New password field hint on the Active Directory password change dialog.">
     Enter new password
   </message>
   <message name="IDS_AD_PASSWORD_CHANGE_REPEAT_NEW_PASSWORD" desc="Repeat of the new password field hint on the Active Directory password change dialog.">
     Confirm new password
   </message>
   <message name="IDS_AD_PASSWORD_CHANGE_MESSAGE" desc="Message to the user that the Active Directory administrator requires the user to change his/her password.">
     <ph name="USER_NAME">$1</ph>, your administrator requires you to change your password.
   </message>
   <message name="IDS_AD_PASSWORD_CHANGE_INVALID_PASSWORD" desc="Error message for the old password field on the Active Directory password change dialog.">
     The password you entered is incorrect.
   </message>
   <message name="IDS_AD_PASSWORD_CHANGE_PASSWORDS_MISMATCH" desc="Error message in case new password fields does not match on the Active Directory password change dialog.">
     Passwords do not match.
   </message>
+  <message name="IDS_AD_DOMAIN_JOIN_UNKNOWN_ERROR" desc="Default error text on the Active Directory join screen">
+    Oops! Something went wrong when trying to join the domain. Please try again.
+  </message>
+  <message name="IDS_AD_INVALID_USERNAME" desc="Alert message about invalid username on the Active Directory domain join screen.">
+    Please enter a valid username
+  </message>
+  <message name="IDS_AD_INVALID_PASSWORD" desc="Alert message about mismatching username and password in the Active Directory">
+    The username and password you entered do not match
+  </message>
+  <message name="IDS_AD_MACHINENAME_INVALID" desc="Alert message about invalid machine name">
+    Invalid machine name
+  </message>
+  <message name="IDS_AD_MACHINENAME_TOO_LONG" desc="Alert message about too long machine name">
+    Machine name too long
+  </message>
+  <message name="IDS_AD_USER_DENIED_TO_JOIN_MACHINE" desc="Alert message user was denied to join machine to the domain">
+    Failed to join the machine to the domain. This might be due to insufficient privileges for your account on the server.
+  </message>
+  <message name="IDS_AD_USER_HIT_JOIN_QUOTA" desc="Alert message that user can't add more machines to the domain">
+    Failed to join the machine to the domain. This might be due to exceeding the maximum number of allowed machine joins for your account on the server.
+  </message>
   <message name="IDS_ENTERPRISE_ENROLLMENT_ATTRIBUTE_EXPLANATION" desc="Device attribute message to be shown on attribute update prompt screen.">
     Optional — enter new or update existing information to be associated with this device.
   </message>
   <message name="IDS_ENTERPRISE_ENROLLMENT_EXPLAIN_ATTRIBUTE_LINK" desc="Text on the link to the device attribute update help article.">
     Learn more.
   </message>
 
   <!-- About network UI display strings -->
   <message name="IDS_NETWORK_UI_TITLE" desc="Title of the page">
     Network
@@ skipping 383 matching lines @@
     Attempts left: $1
   </message>
   <message name="IDS_REQUEST_PIN_DIALOG_PIN" desc="The Provider Identification Number abbreviation">
     PIN
   </message>
   <message name="IDS_REQUEST_PIN_DIALOG_PUK" desc="The Personal Unlocking Key (as used in mobile phones) abbreviation">
     PUK
   </message>
 
 </grit-part>