Merge "Change RenderEngine::drawLayers to take a vector of LayerSettings pointers"

void TestRenderEngine::drawLayers() {

    base::unique_fd bufferFence;

    base::unique_fd readyFence;

    mRenderEngine->drawLayers(mDisplaySettings, mCompositionLayers,

    std::vector<const renderengine::LayerSettings*> compositionLayerPointers;

    compositionLayerPointers.reserve(mCompositionLayers.size());

    std::transform(mCompositionLayers.begin(), mCompositionLayers.end(),

                   std::back_insert_iterator(compositionLayerPointers),

                   [](renderengine::LayerSettings& settings) -> renderengine::LayerSettings* {

                       return &settings;

                   });

    mRenderEngine->drawLayers(mDisplaySettings, compositionLayerPointers,

                              mGraphicBuffer->getNativeBuffer(), true, std::move(bufferFence),

                              &readyFence);

    int fd = readyFence.release();