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 c758775cab2b80b2acbcc755c00077f7d023413a..823df3346f5647fd58cd9145709d319ce0ed26eb 100644
--- a/services/ui/ws/window_tree.cc
+++ b/services/ui/ws/window_tree.cc
@@ -961,14 +961,9 @@ void WindowTree::ProcessTransientWindowRemoved(
 void WindowTree::ProcessWindowSurfaceChanged(
     ServerWindow* window,
     const cc::SurfaceInfo& surface_info) {
-  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())) {
+  ClientWindowId client_window_id;
+  if (!IsWindowKnown(window, &client_window_id))

[sky, 2017/05/26 23:14:18]

This means for embed points you send the change to both the owner and the
embedded window. Is that expected? I would think you would only send it to one
based on who originated the message.

[Peng, 2017/05/30 19:46:27]

For the embed points, we only call this function on parent tree. The function
will not be called on the child tree. So the child tree will not be notified.

     return;
-  }
-
   client()->OnWindowSurfaceChanged(client_window_id.id, surface_info);
 }