mus-ws: Plumb FrameSinkId to Children

services/ui/ws/window_manager_client_unittest.cc

Index: services/ui/ws/window_manager_client_unittest.cc
diff --git a/services/ui/ws/window_manager_client_unittest.cc b/services/ui/ws/window_manager_client_unittest.cc
index 02a59a7096c0b0adeb056c7eb4e7079a2043c313..9004a5f2f02348c1513f3cdbd77ad474ab87895b 100644
--- a/services/ui/ws/window_manager_client_unittest.cc
+++ b/services/ui/ws/window_manager_client_unittest.cc
@@ -714,7 +714,8 @@ TEST_F(WindowServerTest, EstablishConnectionViaFactory) {
   aura::WindowTreeClient second_client(connector(), this, nullptr, nullptr,
                                        nullptr, false);
   second_client.ConnectViaWindowTreeFactory();
-  aura::WindowTreeHostMus window_tree_host_in_second_client(&second_client);
+  aura::WindowTreeHostMus window_tree_host_in_second_client(
+      &second_client, cc::FrameSinkId(1, 1));
   window_tree_host_in_second_client.InitHost();
   window_tree_host_in_second_client.window()->Show();
   ASSERT_TRUE(second_client.GetRoots().count(
@@ -743,7 +744,8 @@ TEST_F(WindowServerTest, OnWindowHierarchyChangedIncludesTransientParent) {
   aura::WindowTreeClient second_client(connector(), this, nullptr, nullptr,
                                        nullptr, false);
   second_client.ConnectViaWindowTreeFactory();
-  aura::WindowTreeHostMus window_tree_host_in_second_client(&second_client);
+  aura::WindowTreeHostMus window_tree_host_in_second_client(
+      &second_client, cc::FrameSinkId(1, 1));
   window_tree_host_in_second_client.InitHost();
   window_tree_host_in_second_client.window()->Show();
   aura::Window* second_client_child = NewVisibleWindow(