Merge "SF: Fix FrameTimeline based FrameStats test" into main

void Layer::getFrameStats(FrameStats* outStats) const {

    if (FlagManager::getInstance().deprecate_frame_tracker()) {

        if (auto ftl = getTimeline()) {

            float fps = ftl->get().computeFps({getSequence()});

            nsecs_t refreshPeriod =

                    Fps::fromValue(ftl->get().computeFps({getSequence()})).getPeriodNsecs();

            // FPS computation requires some number of layer updates before the calculation can be

            // made. If not enough frames are available return the projected FPS based on the

            // pacesetter display's native refresh rate.

            if (!refreshPeriod) {

                refreshPeriod = mFlinger->mScheduler->getPacesetterVsyncPeriod().ns();

            }

            ftl->get().generateFrameStats(getSequence(), mFrameStatsHistorySize, outStats);

            outStats->refreshPeriodNano = Fps::fromValue(fps).getPeriodNsecs();

            outStats->refreshPeriodNano = refreshPeriod;

        }

    } else {

        mDeprecatedFrameTracker.getStats(outStats);