FrameGenerator should receive SurfaceInfo and use it in frame generation

services/ui/ws/window_server.cc

Index: services/ui/ws/window_server.cc
diff --git a/services/ui/ws/window_server.cc b/services/ui/ws/window_server.cc
index 0bf97ea295c503d7a332a5bc7456b6538e530a13..8ab1768ffe80896a3a36af3cade498e91a01662a 100644
--- a/services/ui/ws/window_server.cc
+++ b/services/ui/ws/window_server.cc
@@ -783,10 +783,11 @@ void WindowServer::OnSurfaceCreated(const cc::SurfaceInfo& surface_info) {
 
   // FrameGenerator will add an appropriate reference for the new surface.
   DCHECK(display_manager_->GetDisplayContaining(window));
-  display_manager_->GetDisplayContaining(window)
-      ->platform_display()
-      ->GetFrameGenerator()
-      ->OnSurfaceCreated(surface_info.id(), window);
+  auto display = display_manager_->GetDisplayContaining(window);
+  if (window == display->GetActiveRootWindow()) {
+    display->platform_display()->GetFrameGenerator()->OnSurfaceCreated(
+        surface_info);
+  }
 
   // This is only used for testing to observe that a window has a
   // CompositorFrame.