Fix two flaky media notification tests

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

Index: chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationActionsUpdatedTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationActionsUpdatedTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationActionsUpdatedTest.java
index 3660c91b3971afa13ff475af2cdfa23883d3cf0a..e33e20387c7749937fc537674f10a72d4d5962d0 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationActionsUpdatedTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationActionsUpdatedTest.java
@@ -28,7 +28,7 @@ import java.util.Set;
  */
 public class NotificationActionsUpdatedTest extends ChromeActivityTestCaseBase<ChromeActivity> {
     private static final int NOTIFICATION_ID = R.id.media_playback_notification;
-    private static final String SIMPLE_PAGE_URL = "/content/test/data/simple_page.html";
+    private static final String TEST_PAGE_URL = "/content/test/data/media/session/title1.html";
 
     private Tab mTab;
     private EmbeddedTestServer mTestServer;
@@ -77,13 +77,13 @@ public class NotificationActionsUpdatedTest extends ChromeActivityTestCaseBase<C
     @SmallTest
     public void testActionsPersistAfterSamePageNavigation() throws Throwable {
         ensureTestServer();
-        loadUrl(mTestServer.getURL(SIMPLE_PAGE_URL));
+        loadUrl(mTestServer.getURL(TEST_PAGE_URL));
         simulateMediaSessionActionsChanged(mTab, buildActions());
         simulateMediaSessionStateChanged(mTab, true, false);
         assertActionsMatch(buildActions());
 
         NotificationTestUtils.simulateSamePageNavigation(
-                getInstrumentation(), mTab, mTestServer.getURL(SIMPLE_PAGE_URL));
+                getInstrumentation(), mTab, mTestServer.getURL(TEST_PAGE_URL));
         assertActionsMatch(buildActions());
     }