Merge "Always call WebView.onPageStarted(), regardless of whether a WebViewClient has been set"

    */

    public void onPageStarted(String url, Bitmap favicon) {

        // Do an unsynchronized quick check to avoid posting if no callback has

        // been set.

        if (mWebViewClient == null) {

            return;

        }

        // We need to send the message even if no WebViewClient is set, because we need to call

        // WebView.onPageStarted().

        // Performance probe

        if (PERF_PROBE) {

            mWebCoreThreadTime = SystemClock.currentThreadTimeMillis();