GpuCompositorFrameSink implements cc::mojom::DisplayPrivate

services/ui/ws/frame_generator.cc

Index: services/ui/ws/frame_generator.cc
diff --git a/services/ui/ws/frame_generator.cc b/services/ui/ws/frame_generator.cc
index 55c5419e10464a654ae14e8c737b3f2a93d2c3c6..3b2fbc438c783f05089461311f1098a2c0856568 100644
--- a/services/ui/ws/frame_generator.cc
+++ b/services/ui/ws/frame_generator.cc
@@ -43,8 +43,11 @@ void FrameGenerator::OnAcceleratedWidgetAvailable(
   DCHECK_NE(gfx::kNullAcceleratedWidget, widget);
   cc::mojom::MojoCompositorFrameSinkRequest request =
       mojo::GetProxy(&compositor_frame_sink_);
+  cc::mojom::DisplayPrivateRequest display_private_request =
+      mojo::GetProxy(&display_private_);
   root_window_->CreateDisplayCompositorFrameSink(
-      widget, std::move(request), binding_.CreateInterfacePtrAndBind());
+      widget, std::move(request), binding_.CreateInterfacePtrAndBind(),
+      std::move(display_private_request));
   // TODO(fsamuel): This means we're always requesting a new BeginFrame signal
   // even when we don't need it. Once surface ID propagation work is done,
   // this will not be necessary because FrameGenerator will only need a