[Android] Small java changes for EMMA code coverage

content/public/android/javatests/src/org/chromium/content/common/CleanupReferenceTest.java

Index: content/public/android/javatests/src/org/chromium/content/common/CleanupReferenceTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/common/CleanupReferenceTest.java b/content/public/android/javatests/src/org/chromium/content/common/CleanupReferenceTest.java
index a887ffb051ffae7eabd0c9bb5376b584a8a9072d..6f56449195e530d9c50cfec672bce130a4831a69 100644
--- a/content/public/android/javatests/src/org/chromium/content/common/CleanupReferenceTest.java
+++ b/content/public/android/javatests/src/org/chromium/content/common/CleanupReferenceTest.java
@@ -58,6 +58,8 @@ public class CleanupReferenceTest extends InstrumentationTestCase {
         assertEquals(1, sObjectCount.get());
 
         instance = null;
+        // Ensure compiler / instrumentation does not strip out the assignment.
+        assertTrue(instance == null);
         collectGarbage();
         assertTrue(CriteriaHelper.pollForCriteria(new Criteria() {
             @Override
@@ -81,6 +83,8 @@ public class CleanupReferenceTest extends InstrumentationTestCase {
         }
 
         instances = null;
+        // Ensure compiler / instrumentation does not strip out the assignment.
+        assertTrue(instances == null);
         collectGarbage();
         assertTrue(CriteriaHelper.pollForCriteria(new Criteria() {
             @Override