Demonstrate race in NQE test

components/cronet/android/test/javatests/src/org/chromium/net/TestNetworkQualityRttListener.java

Index: components/cronet/android/test/javatests/src/org/chromium/net/TestNetworkQualityRttListener.java
diff --git a/components/cronet/android/test/javatests/src/org/chromium/net/TestNetworkQualityRttListener.java b/components/cronet/android/test/javatests/src/org/chromium/net/TestNetworkQualityRttListener.java
index afeec1f4f53651b45986b50ca842f4fbe79115b2..8d2cda799607bff8ef89f4954ffd82ad84782fb5 100644
--- a/components/cronet/android/test/javatests/src/org/chromium/net/TestNetworkQualityRttListener.java
+++ b/components/cronet/android/test/javatests/src/org/chromium/net/TestNetworkQualityRttListener.java
@@ -6,6 +6,7 @@ package org.chromium.net;
 
 import static junit.framework.Assert.assertEquals;
 
+import android.util.Log;
 import android.util.SparseIntArray;
 
 import java.util.concurrent.Executor;
@@ -26,6 +27,11 @@ class TestNetworkQualityRttListener extends NetworkQualityRttListener {
 
     @Override
     public void onRttObservation(int rttMs, long when, int source) {
+        try {
+            Thread.sleep(1000);
+        } catch (Exception e) {
+            Log.e("PJPJ", "uhoh " + e);
+        }
         synchronized (mLock) {
             mRttObservationCount++;
             mRttObservationCountBySource.put(source, mRttObservationCountBySource.get(source) + 1);