Deprecate TrackingIdAccess.byTrackingId

This code path should only be used by the SQL indexing system, which
is being quickly deprecated in 2.8 and will be removed in 2.9 when
secondary indexing becomes the standard.

Change-Id: I6cd38e458767d839f4510de20ff0d1f81a254e12
diff --git a/gerrit-reviewdb/src/main/java/com/google/gerrit/reviewdb/server/TrackingIdAccess.java b/gerrit-reviewdb/src/main/java/com/google/gerrit/reviewdb/server/TrackingIdAccess.java
index d8b2cee..9f2bae5 100644
--- a/gerrit-reviewdb/src/main/java/com/google/gerrit/reviewdb/server/TrackingIdAccess.java
+++ b/gerrit-reviewdb/src/main/java/com/google/gerrit/reviewdb/server/TrackingIdAccess.java
@@ -29,6 +29,7 @@
   @Query("WHERE key.changeId = ?")
   ResultSet<TrackingId> byChange(Change.Id change) throws OrmException;
 
+  @Deprecated
   @Query("WHERE key.trackingKey = ?")
   ResultSet<TrackingId> byTrackingId(TrackingId.Id trackingId)
       throws OrmException;
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/query/change/TrackingIdPredicate.java b/gerrit-server/src/main/java/com/google/gerrit/server/query/change/TrackingIdPredicate.java
index 38b3d0c..89e5ba9 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/query/change/TrackingIdPredicate.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/query/change/TrackingIdPredicate.java
@@ -46,6 +46,7 @@
     return false;
   }
 
+  @SuppressWarnings("deprecation")
   @Override
   public ResultSet<ChangeData> read() throws OrmException {
     HashSet<Change.Id> ids = new HashSet<Change.Id>();