WebContentsObserver update for PlzNavigate methods

chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivity.java
index 901b62b51f70f11bef575b192284684282548dd1..7a79e5f8d8ba61f9d76f73bb68179883641497ff 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivity.java
@@ -26,6 +26,7 @@ import org.chromium.chrome.browser.tabmodel.document.TabDelegate;
 import org.chromium.chrome.browser.widget.ControlContainer;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content_public.browser.LoadUrlParams;
+import org.chromium.content_public.browser.NavigationHandle;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.content_public.browser.WebContentsObserver;
 
@@ -169,9 +170,8 @@ public abstract class FullScreenActivity extends ChromeActivity {
         ContentViewCore.fromWebContents(webContents).setFullscreenRequiredForOrientationLock(false);
         mWebContentsObserver = new WebContentsObserver(webContents) {
             @Override
-            public void didCommitProvisionalLoadForFrame(
-                    long frameId, boolean isMainFrame, String url, int transitionType) {
-                if (!isMainFrame) return;
+            public void didFinishNavigation(NavigationHandle navigation) {
+                if (!navigation.isInMainFrame()) return;
                 // Notify the renderer to permanently hide the top controls since they do
                 // not apply to fullscreen content views.
                 mTab.updateBrowserControlsState(mTab.getBrowserControlsStateConstraints(), true);