Merge "Track jank classification for bufferless layers."

void Layer::onSurfaceFrameCreated(

        const std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame) {

    if (!hasBufferOrSidebandStreamInDrawing()) {

        return;

    }

    while (mPendingJankClassifications.size() >= kPendingClassificationMaxSurfaceFrames) {

        // Too many SurfaceFrames pending classification. The front of the deque is probably not

        // tracked by FrameTimeline and will never be presented. This will only result in a memory

        // leak.

        if (hasBufferOrSidebandStreamInDrawing()) {

            // Only log for layers with a buffer, since we expect the jank data to be drained for

            // these, while there may be no jank listeners for bufferless layers.

            ALOGW("Removing the front of pending jank deque from layer - %s to prevent memory leak",

                  mName.c_str());

            std::string miniDump = mPendingJankClassifications.front()->miniDump();

            ALOGD("Head SurfaceFrame mini dump\n%s", miniDump.c_str());

        }

        mPendingJankClassifications.pop_front();

    }

    mPendingJankClassifications.emplace_back(surfaceFrame);