Replace deprecated Android java test annotations

chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/UndoTabModelTest.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.tabmodel;
 
 import android.annotation.TargetApi;
 import android.os.Build;
-import android.test.suitebuilder.annotation.MediumTest;
+import android.support.test.filters.MediumTest;
 
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.FlakyTest;
 import org.chromium.base.test.util.MinAndroidSdkLevel;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.base.test.util.UrlUtils;
@@ skipping 1639 matching lines @@
         openMostRecentlyClosedTabOnUiThread(firstSelector);
         assertEquals("Closed tab in second window should be restored in the first window.", 2,
                 firstModel.getCount());
         Tab tab0 = firstModel.getTabAt(0);
         Tab tab1 = firstModel.getTabAt(1);
         Tab[] firstWindowTabs = new Tab[]{tab0, tab1};
         checkState(firstModel, firstWindowTabs, tab0, EMPTY, firstWindowTabs, tab0);
         assertEquals(TEST_URL_1, tab1.getUrl());
     }
 }