Bug 1012782 - Expose cf_last_resolved in the RPC API

r=glob

extensions/LastResolved/Extension.pm

@@ -61,11 +61,12 @@ sub _migrate_last_resolved {
     }
 }
 
-sub active_custom_fields {
+sub bug_check_can_change_field {
     my ($self, $args) = @_;
-    my $fields = $args->{'fields'};
-    my @tmp_fields = grep($_->name ne 'cf_last_resolved', @$$fields);
-    $$fields = \@tmp_fields;
+    my ($field, $priv_results) = @$args{qw(field priv_results)};
+    if ($field eq 'cf_last_resolved') {
+        push (@$priv_results, PRIVILEGES_REQUIRED_EMPOWERED);
+    }
 }
 
 sub bug_end_of_update {

extensions/LastResolved/template/en/default/hook/bug/edit-custom_field.html.tmpl

@@ -0,0 +1,12 @@
+[%# This Source Code Form is subject to the terms of the Mozilla Public
+  # License, v. 2.0. If a copy of the MPL was not distributed with this
+  # file, You can obtain one at http://mozilla.org/MPL/2.0/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[%# Do not display the last resolved value in the UI %]
+[% IF field.name == 'cf_last_resolved' %]
+  [% field.hidden = 1 %]
+[% END %]