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

chrome/app/settings_strings.grdp

Index: chrome/app/settings_strings.grdp
diff --git a/chrome/app/settings_strings.grdp b/chrome/app/settings_strings.grdp
index 81f15efdd17ab9a6aa866a40199f2e4fef8c7618..7a6205a12c66da75f7e275db820b5f633fcdf049 100644
--- a/chrome/app/settings_strings.grdp
+++ b/chrome/app/settings_strings.grdp
@@ -246,6 +246,9 @@
     <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 certificates are sometimes added in order to explicitly distrust them. Thus, they will be listed but it's important that the user note that they serve a different purpose from the rest.">

[dschuyler, 2016/03/29 00:39:17]

This is an excellent comment, but it may be in
the wrong place (or I may be misunderstanding).
I *think* the desc="" is to help the person
doing localization of the text. This feels more
like a note to another programmer rather than a
translator (WDYT?)

[dpapad, 2016/03/29 00:57:54]

I agree with your assessment. Initially I did not think about it too much, just
copied it over from
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/app/generat....
Removed the part of the comment that is not helpful for translation. Not sure if
it is worth moving the removed part elsewhere in the code. Let me know if you
have a suggestion.

+      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">