WIP: Propagate SurfaceID up window tree hierarchy

services/ui/public/cpp/tests/test_window_tree.cc

Index: services/ui/public/cpp/tests/test_window_tree.cc
diff --git a/services/ui/public/cpp/tests/test_window_tree.cc b/services/ui/public/cpp/tests/test_window_tree.cc
index ace3f89d7cad713db026b5394ecb11b87f3ca3ea..b2e3ec2d12c771228fb1c3ba4240aeb834e4fde2 100644
--- a/services/ui/public/cpp/tests/test_window_tree.cc
+++ b/services/ui/public/cpp/tests/test_window_tree.cc
@@ -89,6 +89,11 @@ void TestWindowTree::AttachSurface(
     mojo::InterfaceRequest<mojom::Surface> surface,
     mojom::SurfaceClientPtr client) {}
 
+void TestWindowTree::SatisfySurfaceSequence(
+    uint32_t window_id,
+    const cc::SurfaceSequence& sequence) {
+}
+
 void TestWindowTree::AddWindow(uint32_t change_id,
                                uint32_t parent,
                                uint32_t child) {}