mus: Disregard windows that explicitly set can_accept_events to be false when sending events.

services/ui/public/cpp/lib/window_tree_client.cc

Index: services/ui/public/cpp/lib/window_tree_client.cc
diff --git a/services/ui/public/cpp/lib/window_tree_client.cc b/services/ui/public/cpp/lib/window_tree_client.cc
index 8c135735b9a476c9071432d2c788cd3aee8cd0f1..fcc0f985d9ebbaa6d647f57abc52a56bb8f4140f 100644
--- a/services/ui/public/cpp/lib/window_tree_client.cc
+++ b/services/ui/public/cpp/lib/window_tree_client.cc
@@ -705,6 +705,12 @@ void WindowTreeClient::RemoveObserver(WindowTreeClientObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
+void WindowTreeClient::SetCanAcceptEvents(Id window_id,
+                                          bool can_accept_events) {
+  DCHECK(tree_);
+  tree_->SetCanAcceptEvents(window_id, can_accept_events);
+}
+
 void WindowTreeClient::OnEmbed(ClientSpecificId client_id,
                                    mojom::WindowDataPtr root_data,
                                    mojom::WindowTreePtr tree,