Replace deprecated Android java test annotations

chrome/android/javatests/src/org/chromium/chrome/browser/infobar/InfoBarContainerTest.java

 // Copyright 2016 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.infobar;
 
 import android.graphics.Rect;
 import android.graphics.Region;
-import android.test.suitebuilder.annotation.MediumTest;
+import android.support.test.filters.MediumTest;
 import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
 import android.widget.TextView;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
@@ skipping 339 matching lines @@
         // Additional manual test that this is working:
         // - adb shell dumpsys SurfaceFlinger
         // - Observe that Clank's overlay size changes (or disappears if URLbar is also gone).
     }
 
     @Override
     public void startMainActivity() throws InterruptedException {
         startMainActivityOnBlankPage();
     }
 }