Remove onLoadStopped/onLoadStarted from WebContentsDelegateAndroid

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
index 55db785f021036a1f4cb2eccd50ed96d9df770f2..8fa58999606c11f0f3d503f4b4388a31d535845b 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
@@ -132,20 +132,19 @@ public class OverlayPanelContent {
             private boolean mIsFullscreen;
 
             @Override
-            public void onLoadStarted(boolean toDifferentDocument) {
-                super.onLoadStarted(toDifferentDocument);
-                mProgressObserver.onProgressBarStarted();
-            }
-
-            @Override
-            public void onLoadStopped() {
-                super.onLoadStopped();
-                mProgressObserver.onProgressBarFinished();
+            public void loadingStateChanged(boolean toDifferentDocument) {
+                boolean isLoading = mContentViewCore != null
+                        && mContentViewCore.getWebContents() != null
+                        && mContentViewCore.getWebContents().isLoading();
+                if (isLoading) {
+                    mProgressObserver.onProgressBarStarted();
+                } else {
+                    mProgressObserver.onProgressBarFinished();
+                }
             }
 
             @Override
             public void onLoadProgressChanged(int progress) {
-                super.onLoadProgressChanged(progress);
                 mProgressObserver.onProgressBarUpdated(progress);
             }