void doFrame(int frameNr) override {
        const char* text = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

        std::unique_ptr<Canvas> canvas(
                Canvas::create_recording_canvas(container->stagingProperties().getWidth(),
                                                container->stagingProperties().getHeight(),
                                                container.get()));

        Paint paint;
        paint.setAntiAlias(true);
        paint.setColor(Color::Black);
        for (int i = 0; i < 5; i++) {
            paint.setTextSize(10 + (frameNr % 20) + i * 20);
            TestUtils::drawUtf8ToCanvas(canvas.get(), text, paint, 0, 100 * (i + 2));
        }

        container->setStagingDisplayList(canvas->finishRecording());
    }
    void doFrame(int frameNr) override {
        std::unique_ptr<uint16_t[]> text = TestUtils::asciiToUtf16(
                "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
        ssize_t textLength = 26 * 2;

        TestCanvas canvas(
                container->stagingProperties().getWidth(),
                container->stagingProperties().getHeight());
        Paint paint;
        paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
        paint.setAntiAlias(true);
        paint.setColor(Color::Black);
        for (int i = 0; i < 5; i++) {
            paint.setTextSize(10 + (frameNr % 20) + i * 20);
            canvas.drawText(text.get(), 0, textLength, textLength,
                    0, 100 * (i + 2), kBidi_Force_LTR, paint, nullptr);
        }

        container->setStagingDisplayList(canvas.finishRecording(), nullptr);
    }