Mus+Ash: propagate Surface ID to parents

services/ui/public/cpp/window_private.h

Index: services/ui/public/cpp/window_private.h
diff --git a/services/ui/public/cpp/window_private.h b/services/ui/public/cpp/window_private.h
index b875b8bc7f925727d61240767537ce6ef24429bf..7c42fb678de90f85341d9cb46c50673ee5e44262 100644
--- a/services/ui/public/cpp/window_private.h
+++ b/services/ui/public/cpp/window_private.h
@@ -87,6 +87,14 @@ class WindowPrivate {
                               const std::vector<uint8_t>* data) {
     window_->LocalSetSharedProperty(name, data);
   }
+  void LocalSetSurfaceId(const cc::SurfaceId& surface_id,
+                         const cc::SurfaceSequence& surface_sequence,
+                         const gfx::Size& frame_size,
+                         float device_scale_factor) {
+    window_->LocalSetSurfaceId(surface_id, surface_sequence, frame_size,
+                               device_scale_factor);
+  }
+
   void NotifyWindowStackingChanged() { window_->NotifyWindowStackingChanged(); }
 
  private: