android: Mark flaky tests with @RetryOnFailure

chrome/android/javatests/src/org/chromium/chrome/browser/omnibox/UrlBarTest.java

 // Copyright 2015 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.chrome.browser.omnibox;
 
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.Intent;
@@ skipping 467 matching lines @@
         CriteriaHelper.pollUiThread(Criteria.equals("testy", new Callable<String>() {
             @Override
             public String call() {
                 return requestedAutocompleteText.get();
             }
         }));
     }
 
     @SmallTest
     @Feature("Omnibox")
+    @RetryOnFailure
     public void testAutocompleteCorrectlyPerservedOnBatchMode() throws InterruptedException {
         startMainActivityOnBlankPage();
         stubLocationBarAutocomplete();
 
         final UrlBar urlBar = getUrlBar();
         OmniboxTestUtils.toggleUrlBarFocus(urlBar, true);
         OmniboxTestUtils.waitForFocusAndKeyboardActive(urlBar, true);
 
         // Valid case (cursor at the end of text, single character, matches previous autocomplete).
         setAutocomplete(urlBar, "g", "oogle.com");
@@ skipping 299 matching lines @@
         CharSequence text = (clip != null && clip.getItemCount() != 0)
                 ? clip.getItemAt(0).getText() : null;
         return text != null ? text.toString() : null;
     }
 
     @Override
     public void startMainActivity() throws InterruptedException {
         // Each test will start the activity.
     }
 }