Mark CronetUrlRequestContextTest#testRealTimeNetworkQualityObservations flaky.

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net;
 
 import static org.chromium.base.CollectionUtil.newHashSet;
 
 import android.content.Context;
 import android.content.ContextWrapper;
@@ skipping 252 matching lines @@
         UrlRequest urlRequest =
                 mTestFramework.mCronetEngine.createRequest(mUrl, callback, callback.getExecutor());
         urlRequest.start();
         callback.blockForDone();
         testExecutor.runAllTasks();
         assertEquals(0, networkQualityListener.rttObservationCount());
         assertEquals(0, networkQualityListener.throughputObservationCount());
         mTestFramework.mCronetEngine.shutdown();
     }
 
+    /*
     @SmallTest
     @Feature({"Cronet"})
     // TODO(xunjieli): Remove annotation after crbug.com/539519 is fixed.
     @SuppressWarnings("deprecation")
+    */
+    @FlakyTest(message = "http://crbug.com/614227")
     public void testRealTimeNetworkQualityObservations() throws Exception {
         mTestFramework = startCronetTestFramework();
         TestExecutor testExecutor = new TestExecutor();
         TestNetworkQualityListener networkQualityListener = new TestNetworkQualityListener();
         mTestFramework.mCronetEngine.enableNetworkQualityEstimatorForTesting(
                 true, true, testExecutor);
         mTestFramework.mCronetEngine.addRttListener(networkQualityListener);
         mTestFramework.mCronetEngine.addThroughputListener(networkQualityListener);
         TestUrlRequestCallback callback = new TestUrlRequestCallback();
         UrlRequest urlRequest =
@@ skipping 859 matching lines @@
                     }
                 }.start();
                 otherThreadDone.block();
                 builder.build().shutdown();
                 uiThreadDone.open();
             }
         });
         assertTrue(uiThreadDone.block(1000));
     }
 }