Don't wait to notify client of spoof attempt if a modal dialog is created.

BUG=281256
TEST=See bug for repro steps.

Review URL: https://chromiumcodereview.appspot.com/23620020

git-svn-id: svn://svn.chromium.org/blink/trunk@157196 bbb929c8-8fbe-4397-9dbb-9b2b20218538
void FrameLoader::checkTimerFired(Timer<FrameLoader>*)
{
    RefPtr<Frame> protect(m_frame);

    if (Page* page = m_frame->page()) {
        if (page->defersLoading())
            return;
    }
    if (m_shouldCallCheckCompleted)
        checkCompleted();
}

void FrameLoader::checkTimerFired(Timer<FrameLoader>*)
{
    RefPtr<Frame> protect(m_frame);

    if (Page* page = m_frame->page()) {
        if (page->defersLoading())
            return;
    }
    if (m_shouldCallCheckCompleted)
        checkCompleted();
}
