[automerger] Fix security hole in GateKeeperResponse. am: e74cae8f7c

Change-Id: Ic72c354aaec594f02567949e294be2c10da47853

core/java/android/service/gatekeeper/GateKeeperResponse.java

@@ -85,6 +85,8 @@ public final class GateKeeperResponse implements Parcelable {
             if (mPayload != null) {
                 dest.writeInt(mPayload.length);
                 dest.writeByteArray(mPayload);
+            } else {
+                dest.writeInt(0);
             }
         }
     }