diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 0f2af2f..b60b387 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -335,6 +335,7 @@
         return nullptr;
     }
     mGetHandleCalled = true;
+    mHandleAlive = true;
     return sp<LayerHandle>::make(mFlinger, sp<Layer>::fromExisting(this));
 }
 
@@ -1649,9 +1650,9 @@
     mFlinger->mFrameTracer->onDestroy(layerId);
 }
 
-size_t Layer::getChildrenCount() const {
+size_t Layer::getDescendantCount() const {
     size_t count = 0;
-    for (const sp<Layer>& child : mCurrentChildren) {
+    for (const sp<Layer>& child : mDrawingChildren) {
         count += 1 + child->getChildrenCount();
     }
     return count;
@@ -1898,6 +1899,12 @@
     }
 }
 
+void Layer::traverseChildren(const LayerVector::Visitor& visitor) {
+    for (const sp<Layer>& child : mDrawingChildren) {
+        visitor(child.get());
+    }
+}
+
 LayerVector Layer::makeChildrenTraversalList(LayerVector::StateSet stateSet,
                                              const std::vector<Layer*>& layersInTree) {
     LOG_ALWAYS_FATAL_IF(stateSet == LayerVector::StateSet::Invalid,