In debug_ui mode, show CAF result state, length of AF scan, fps, for camera2 API.

Bug: 17397777
Bug: 17028594
Bug: 17391241
Change-Id: Id5a7fe748f988755cb2d786a2103e375eb97b08f
diff --git a/src/com/android/camera/one/OneCamera.java b/src/com/android/camera/one/OneCamera.java
index ab0f95e..1b7ecca 100644
--- a/src/com/android/camera/one/OneCamera.java
+++ b/src/com/android/camera/one/OneCamera.java
@@ -204,8 +204,9 @@
          * Called when state of auto focus system changes.
          *
          * @param state Current auto focus state.
+         * @param frameNumber Frame number if available.
          */
-        public void onFocusStatusUpdate(AutoFocusState state);
+        public void onFocusStatusUpdate(AutoFocusState state, long frameNumber);
     }
 
     /**