SF: Switch Layer::createClone to using the factory

Using the factory ensures the intended actual types are used for the
clone.

Test: atest libsurfaceflinger_unittest
Test: go/wm_smoke
Bug: None
Change-Id: I64138724aed2d8c61dc5d59bba247d132291da0c
diff --git a/services/surfaceflinger/ContainerLayer.cpp b/services/surfaceflinger/ContainerLayer.cpp
index cb50d9f..e58e6f4 100644
--- a/services/surfaceflinger/ContainerLayer.cpp
+++ b/services/surfaceflinger/ContainerLayer.cpp
@@ -32,7 +32,7 @@
 
 sp<Layer> ContainerLayer::createClone() {
     String8 name = mName + " (Mirror)";
-    sp<ContainerLayer> layer = new ContainerLayer(
+    sp<ContainerLayer> layer = mFlinger->getFactory().createContainerLayer(
             LayerCreationArgs(mFlinger.get(), nullptr, name, 0, 0, 0, LayerMetadata()));
     layer->setInitialValuesForClone(this);
     return layer;