Revert of Implement aura::WindowPortMus::CreateCompositorFrameSink()

services/ui/ws/window_tree.cc

Index: services/ui/ws/window_tree.cc
diff --git a/services/ui/ws/window_tree.cc b/services/ui/ws/window_tree.cc
index ee3cbc149637ace04585064e844d33f06ff1886e..5b7166a65fb5e5309f6f7e0959dd5edcb03a706a 100644
--- a/services/ui/ws/window_tree.cc
+++ b/services/ui/ws/window_tree.cc
@@ -963,9 +963,14 @@
 void WindowTree::ProcessWindowSurfaceChanged(
     ServerWindow* window,
     const cc::SurfaceInfo& surface_info) {
-  ClientWindowId client_window_id;
-  if (!IsWindowKnown(window, &client_window_id))
-    return;
+  ServerWindow* parent_window = window->parent();
+  ClientWindowId client_window_id, parent_client_window_id;
+  if (!IsWindowKnown(window, &client_window_id) ||
+      !IsWindowKnown(parent_window, &parent_client_window_id) ||
+      !created_window_map_.count(parent_window->id())) {
+    return;
+  }
+
   client()->OnWindowSurfaceChanged(client_window_id.id, surface_info);
 }