Replace deprecated Android java test annotations

android_webview/javatests/src/org/chromium/android_webview/test/ClientOnPageFinishedTest.java

 // Copyright 2012 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.android_webview.test;
 
-import android.test.suitebuilder.annotation.MediumTest;
+import android.support.test.filters.MediumTest;
 
 import org.chromium.android_webview.AwContents;
 import org.chromium.android_webview.test.util.CommonResources;
 import org.chromium.android_webview.test.util.JSUtils;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.FlakyTest;
 import org.chromium.content.browser.test.util.TestCallbackHelperContainer;
 import org.chromium.net.test.util.TestWebServer;
 
 import java.util.concurrent.CountDownLatch;
@@ skipping 399 matching lines @@
                     mContentsClient.getOnPageFinishedHelper();
             int currentCallCount = onPageFinishedHelper.getCallCount();
             loadUrlAsync(mAwContents, url);
             onPageFinishedHelper.waitForCallback(currentCallCount);
             assertEquals(url, onPageFinishedHelper.getUrl());
         } finally {
             webServer.shutdown();
         }
     }
 }