@Override
  public void onBackPressed() {
    String newTitle = mTitleEditText.getTrimmedText();
    String newUrl = mUrlEditText.getTrimmedText();
    newUrl = UrlUtilities.fixupUrl(newUrl);
    if (newUrl == null) newUrl = "";
    mUrlEditText.setText(newUrl);

    if (!mTitleEditText.validate() || !mUrlEditText.validate()) return;

    mEnhancedBookmarksModel.setBookmarkTitle(mBookmarkId, newTitle);
    mEnhancedBookmarksModel.setBookmarkUrl(mBookmarkId, newUrl);
    super.onBackPressed();
  }
 @Override
 public void onBackPressed() {
   if (!mBookmarkManager.onBackPressed()) super.onBackPressed();
 }