Fix a crash about opening a folder that was deleted by sync

chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
index bbf33dc5da2f400b5600d7d1b6566b178fb12c30..0db6eb9e78ed8d0133baa39ce325d986bed74c88 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
@@ -65,8 +65,10 @@ public class EnhancedBookmarkManager implements EnhancedBookmarkDelegate {
     private LargeIconBridge mLargeIconBridge;
 
     private final BookmarkModelObserver mBookmarkModelObserver = new BookmarkModelObserver() {
+
         @Override
-        public void bookmarkNodeRemoved(BookmarkItem parent, int oldIndex, BookmarkItem node) {
+        public void bookmarkNodeRemoved(BookmarkItem parent, int oldIndex, BookmarkItem node,
+                boolean isDoingExtensiveChanges) {
             // If the folder is removed in folder mode, show the parent folder or falls back to all
             // bookmarks mode.
             if (getCurrentState() == UIState.STATE_FOLDER