451     mChanges(),  in Display()
472     if (!mChanges) {  in acceptChanges()
479     for (auto& change : mChanges->getTypeChanges()) {  in acceptChanges()
492     mChanges->clearTypeChanges();  in acceptChanges()
569     if (!mChanges) {  in getChangedCompositionTypes()
576         *outNumElements = mChanges->getTypeChanges().size();  in getChangedCompositionTypes()
581     for (const auto& element : mChanges->getTypeChanges()) {  in getChangedCompositionTypes()
694     if (!mChanges) {  in getRequests()
699         *outNumElements = mChanges->getNumLayerRequests();  in getRequests()
708     for (const auto& request : mChanges->getLayerRequests()) {  in getRequests()
735     if (!mChanges || (mChanges->getNumTypes() > 0)) {  in present()
740     mChanges.reset();  in present()
1037     if (!mChanges) {  in validate()
1038         mChanges.reset(new Changes);  in validate()
1075                         mChanges->addTypeChange(layer->getId(),  in validate()
1084                     mChanges->addTypeChange(layer->getId(),  in validate()
1094     *outNumTypes = mChanges->getNumTypes();  in validate()
1095     *outNumRequests = mChanges->getNumLayerRequests();  in validate()