@Override
        public void onExceededDatabaseQuota(String url, String databaseIdentifier, long quota,
                                            long estimatedDatabaseSize,
                                            long totalQuota,
                                            WebStorage.QuotaUpdater quotaUpdater) {
            if (webChromeClient != null) {
                webChromeClient.onExceededDatabaseQuota(url, databaseIdentifier, quota,
                        estimatedDatabaseSize, totalQuota, quotaUpdater);
            } else {
                super.onExceededDatabaseQuota(url, databaseIdentifier, quota,
                        estimatedDatabaseSize, totalQuota, quotaUpdater);
            }
        }
This method can be called in any thread, and if it is not called in the main thread,
it will be automatically distributed to the main thread.

@param url
@param additionalHttpHeaders
app/src/main/java/com/example/jingbin/webviewstudy/view/WVJBWebView.java