Fix a notification update issue when navigating to a different URL in the same origin

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 105203e8c9beb597d0d43b9dc36ed4ff6bc67f54..d5d883595203fa50b4fe5634f18d79ee1f293206 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
@@ -15,6 +15,7 @@ import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.test.ChromeActivityTestCaseBase;
 import org.chromium.content.browser.test.util.Criteria;
 import org.chromium.content.browser.test.util.CriteriaHelper;
+import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.MediaSession;
 import org.chromium.content_public.browser.MediaSessionObserver;
 import org.chromium.net.test.EmbeddedTestServer;
@@ -28,7 +29,7 @@ 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 = "/simple_page.html";
+    private static final String SIMPLE_PAGE_URL = "/content/test/data/simple_page.html";
 
     private Tab mTab;
     private EmbeddedTestServer mTestServer;
@@ -82,7 +83,7 @@ public class NotificationActionsUpdatedTest extends ChromeActivityTestCaseBase<C
         simulateMediaSessionStateChanged(mTab, true, false);
         assertActionsMatch(buildActions());
 
-        loadUrl(mTestServer.getURL(SIMPLE_PAGE_URL + "#some-anchor"));
+        simulateInPageNavigation(mTab, mTestServer.getURL(SIMPLE_PAGE_URL));
         assertActionsMatch(buildActions());
     }
 
@@ -144,6 +145,16 @@ public class NotificationActionsUpdatedTest extends ChromeActivityTestCaseBase<C
             });
     }
 
+    private void simulateInPageNavigation(final Tab tab, final String url) {
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                tab.loadUrl(new LoadUrlParams(url + "#some-anchor"));
+            }
+        });
+        getInstrumentation().waitForIdleSync();
+    }
+
     private void ensureTestServer() {
         try {
             mTestServer = EmbeddedTestServer.createAndStartServer(