am 2bd3c2f7: Merge "Fix null ptr exception in getReadingLevelScale()" into ics-mr0

     * Returns the zoom scale used for reading text on a double-tap.

     */

    public final float getReadingLevelScale() {

        return mDisplayDensity * mWebView.getSettings().getDoubleTapZoom() / 100.0f;

        WebSettings settings = mWebView.getSettings();

        final float doubleTapZoomFactor = settings != null

            ? settings.getDoubleTapZoom() / 100.f : 1.0f;

        return mDisplayDensity * doubleTapZoomFactor;

    }

    public final float getInvDefaultScale() {