Fix testGetCurrentItem by fixing setUp and tearDown methods.

 Bug 6516853

Change-Id: I698c76810d5a5a8a9ec0df0b472e0c00b1917fca
diff --git a/tests/tests/webkit/src/android/webkit/cts/WebBackForwardListTest.java b/tests/tests/webkit/src/android/webkit/cts/WebBackForwardListTest.java
index 44718a5..34dc697 100644
--- a/tests/tests/webkit/src/android/webkit/cts/WebBackForwardListTest.java
+++ b/tests/tests/webkit/src/android/webkit/cts/WebBackForwardListTest.java
@@ -33,12 +33,15 @@
     }
 
     @Override
-    public void setUp() {
+    public void setUp() throws Exception {
+        super.setUp();
         mOnUiThread = new WebViewOnUiThread(this, getActivity().getWebView());
     }
 
-    public void tearDown() {
+    @Override
+    public void tearDown() throws Exception {
         mOnUiThread.cleanUp();
+        super.tearDown();
     }
 
     public void testGetCurrentItem() throws Exception {