Fix alignment issue on old ART runtime.

mojo/android/javatests/src/org/chromium/mojo/bindings/BindingsVersioningTest.java

Index: mojo/android/javatests/src/org/chromium/mojo/bindings/BindingsVersioningTest.java
diff --git a/mojo/android/javatests/src/org/chromium/mojo/bindings/BindingsVersioningTest.java b/mojo/android/javatests/src/org/chromium/mojo/bindings/BindingsVersioningTest.java
index d47223b45a054213f12a36ad1673fbb7d7ac7513..f0c0f7cd27607380626e28c6dba49453ce874ad8 100644
--- a/mojo/android/javatests/src/org/chromium/mojo/bindings/BindingsVersioningTest.java
+++ b/mojo/android/javatests/src/org/chromium/mojo/bindings/BindingsVersioningTest.java
@@ -6,8 +6,7 @@ package org.chromium.mojo.bindings;
 
 import android.test.suitebuilder.annotation.SmallTest;
 
-import junit.framework.TestCase;
-
+import org.chromium.mojo.MojoTestCase;
 import org.chromium.mojo.bindings.test.mojom.test_structs.MultiVersionStruct;
 import org.chromium.mojo.bindings.test.mojom.test_structs.MultiVersionStructV0;
 import org.chromium.mojo.bindings.test.mojom.test_structs.MultiVersionStructV1;
@@ -22,7 +21,7 @@ import org.chromium.mojo.system.impl.CoreImpl;
  * mojo/public/interfaces/bindings/tests/rect.mojom and
  * mojo/public/interfaces/bindings/tests/test_structs.mojom
  */
-public class BindingsVersioningTest extends TestCase {
+public class BindingsVersioningTest extends MojoTestCase {
     private static Rect newRect(int factor) {
         Rect rect = new Rect();
         rect.x = factor;