Replace deprecated Android java test annotations

chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/UrlOverridingTest.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.externalnav;
 
 import android.app.Activity;
 import android.app.Instrumentation;
 import android.app.Instrumentation.ActivityMonitor;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.net.Uri;
 import android.os.SystemClock;
-import android.test.suitebuilder.annotation.SmallTest;
+import android.support.test.filters.SmallTest;
 import android.text.TextUtils;
 import android.util.Base64;
 
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.document.ChromeLauncherActivity;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler.OverrideUrlLoadingResult;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
@@ skipping 313 matching lines @@
                 return mActivityMonitor.getHits();
             }
         }));
     }
 
     @Override
     public void startMainActivity() throws InterruptedException {
         startMainActivityOnBlankPage();
     }
 }