ChangeControl#isAssignee: Use getChange() instead of notes.getChange()

All other places that need the change use getChange() instead of
notes.getChange(). This makes the code consistent.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I39f2cd62f087ac9562cb17e96dd45680fcfa5681

java/com/google/gerrit/server/permissions/ChangeControl.java

diff --git a/java/com/google/gerrit/server/permissions/ChangeControl.java b/java/com/google/gerrit/server/permissions/ChangeControl.java
index 782f8a1..253f50c 100644
--- a/java/com/google/gerrit/server/permissions/ChangeControl.java
+++ b/java/com/google/gerrit/server/permissions/ChangeControl.java
@@ -144,7 +144,7 @@
 
   /** Is this user assigned to this change? */
   private boolean isAssignee() {
-    Account.Id currentAssignee = notes.getChange().getAssignee();
+    Account.Id currentAssignee = getChange().getAssignee();
     if (currentAssignee != null && getUser().isIdentifiedUser()) {
       Account.Id id = getUser().getAccountId();
       return id.equals(currentAssignee);