Add pull-replication plugin in UsedAt annotation

This allows to document in the code that a method defined in the
delete-project plugin is used by the pull-replication plugin.

Bug: Issue 16730
Release-Notes: skip
Change-Id: I375243b3d5ed497a5d69bda09c724d0ca43366bb
diff --git a/java/com/google/gerrit/common/UsedAt.java b/java/com/google/gerrit/common/UsedAt.java
index 1b87f32..91a4da6 100644
--- a/java/com/google/gerrit/common/UsedAt.java
+++ b/java/com/google/gerrit/common/UsedAt.java
@@ -43,6 +43,7 @@
     PLUGIN_DELETE_PROJECT,
     PLUGIN_HIGH_AVAILABILITY,
     PLUGIN_MULTI_SITE,
+    PLUGIN_PULL_REPLICATION,
     PLUGIN_SERVICEUSER,
     PLUGIN_WEBSESSION_FLATFILE,
     MODULE_GIT_REFS_FILTER