MD Settings: Certificate manager, add "UNTRUSTED" labels.

chrome/app/settings_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Settings-specific strings (included from generated_resources.grd). -->
 <grit-part>
   <!-- Policy Indicators -->
   <message name="IDS_SETTINGS_CONTROLLED_SETTING_EXTENSION" desc="Text displayed in the controlled settings indicator tooltip when a setting's value is enforced by an extension.">
     This setting is controlled by extension <ph name="NAME">$1<ex>Settings Extension</ex></ph>
   </message>
 
   <!-- Accessibility Page -->
   <message name="IDS_SETTINGS_ACCESSIBILITY" desc="Name of the settings page which displays accessibility preferences.">
@@ skipping 228 matching lines @@
     </message>
     <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_DONE" desc="Label for done button in certificate manager.">
       Done
     </message>
     <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_OTHERS" desc="Label for the others tab in certificate manager.">
       Others
     </message>
     <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_USAGE_SSL_CLIENT" desc="The description of a certificate that is verified for use as an SSL client">
       SSL Client Certificate
     </message>
+    <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_UNTRUSTED" desc="This text is displayed next to untrusted certificates in a red box.">
+      Untrusted
+    </message>
 
     <!-- Certificate Manager Page, edit certificate authority trust dialog-->
     <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_CA_TRUST_EDIT_DIALOG_TITLE" desc="Title of the certificate manager edit trust dialog">
       Certificate authority
     </message>
     <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_CA_TRUST_EDIT_DIALOG_DESCRIPTION" desc="Line displayed in certificate manager edit trust dialog before the checkboxes for setting certificate trust flags">
       Edit trust settings:
     </message>
     <message name="IDS_SETTINGS_CERTIFICATE_MANAGER_CA_TRUST_EDIT_DIALOG_EXPLANATION" desc="Description in dialog for editing Certification Authority trust flags">
       The certificate "<ph name="CERTIFICATE_NAME">$1<ex>Verisign Class 1 Public Primary Certification Authority</ex></ph>" represents a Certification Authority.
@@ skipping 890 matching lines @@
       System
     </message>
     <message name="IDS_SETTINGS_SYSTEM_HARDWARE_ACCELERATION_LABEL" desc="Label for the checkbox that forces Chrome to render via hardware acceleration (GPU) when available.">
       Use hardware acceleration when available
     </message>
     <message name="IDS_SETTINGS_SYSTEM_PROXY_SETTINGS_BUTTON" desc="Text for the button that changes a user's network proxy settings.">
       Change proxy settings
     </message>
   </if>
 </grit-part>