add Activity.onStop

Bug: 6166958
Change-Id: I421d3fae64e6635a06916385f77f97f1cfe58793
diff --git a/tests/tests/mediastress/src/android/mediastress/cts/MediaFrameworkTest.java b/tests/tests/mediastress/src/android/mediastress/cts/MediaFrameworkTest.java
index 034eeeb..b8c67e4 100644
--- a/tests/tests/mediastress/src/android/mediastress/cts/MediaFrameworkTest.java
+++ b/tests/tests/mediastress/src/android/mediastress/cts/MediaFrameworkTest.java
@@ -66,6 +66,7 @@
 
     public void onStop(Bundle icicle) {
         mWakeLock.release();
+        super.onStop();
     }
 
     public void surfaceDestroyed(SurfaceHolder holder) {