Revert of [M55] Generalize layer mirroring for phantom windows

components/exo/surface.h

Index: components/exo/surface.h
diff --git a/components/exo/surface.h b/components/exo/surface.h
index 744587db667507e671e4996c4dfc6d5276691dc9..a3706787e488021f0d164a800f35417e2bcdaa6f 100644
--- a/components/exo/surface.h
+++ b/components/exo/surface.h
@@ -21,6 +21,7 @@
 #include "third_party/skia/include/core/SkXfermode.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/compositor.h"
+#include "ui/compositor/layer_owner_delegate.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace base {
@@ -88,7 +89,8 @@
 
 // This class represents a rectangular area that is displayed on the screen.
 // It has a location, size and pixel contents.
-class Surface : public ui::ContextFactoryObserver {
+class Surface : public ui::LayerOwnerDelegate,
+                public ui::ContextFactoryObserver {
  public:
   using PropertyDeallocator = void (*)(int64_t value);
 
@@ -207,6 +209,9 @@
   bool HasPendingDamageForTesting(const gfx::Rect& damage) const {
     return pending_damage_.contains(gfx::RectToSkIRect(damage));
   }
+
+  // Overridden from ui::LayerOwnerDelegate:
+  void OnLayerRecreated(ui::Layer* old_layer, ui::Layer* new_layer) override;
 
   // Overridden from ui::ContextFactoryObserver.
   void OnLostResources() override;