[Media>UI] Migrate media notification tests to JUnit tests

chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTestUtils.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTestUtils.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTestUtils.java b/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTestUtils.java
deleted file mode 100644
index 143d234453c44556b6f02a88cd2b70ece27e5654..0000000000000000000000000000000000000000
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTestUtils.java
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2017 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.media.ui;
-
-import android.app.Instrumentation;
-
-import org.chromium.base.ThreadUtils;
-import org.chromium.chrome.browser.tab.Tab;
-import org.chromium.content_public.browser.LoadUrlParams;
-
-/**
- * Helper functions used in notification instrumentation tests.
- */
-public class NotificationTestUtils {
-    /**
-     * Simulates a same page navigation.
-     * @param instrumentation The Instrumentation object for the test.
-     * @param tab The tab to be navigated.
-     * @param url The original URL. The URL to be navigated to is |url| + "#some-anchor".
-     */
-    public static void simulateSamePageNavigation(
-            Instrumentation instrumentation, final Tab tab, final String url) {
-        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
-            @Override
-            public void run() {
-                tab.loadUrl(new LoadUrlParams(url + "#some-anchor"));
-            }
-        });
-        instrumentation.waitForIdleSync();
-    }
-}