Revert of Adding status to swap complete

ui/ozone/platform/drm/gpu/drm_window.cc

Index: ui/ozone/platform/drm/gpu/drm_window.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_window.cc b/ui/ozone/platform/drm/gpu/drm_window.cc
index b2f7a460bb2ecbefab95a557bdd3600a68f6234b..2e5b26ee35b7b44fee7a49ced80f6fe2cf3d52e3 100644
--- a/ui/ozone/platform/drm/gpu/drm_window.cc
+++ b/ui/ozone/platform/drm/gpu/drm_window.cc
@@ -124,8 +124,7 @@
   pending_planes_.push_back(plane);
 }
 
-bool DrmWindow::SchedulePageFlip(bool is_sync,
-                                 const SwapCompletionCallback& callback) {
+bool DrmWindow::SchedulePageFlip(bool is_sync, const base::Closure& callback) {
   last_submitted_planes_.clear();
   last_submitted_planes_.swap(pending_planes_);
   last_swap_sync_ = is_sync;
@@ -135,7 +134,7 @@
                                          callback);
   }
 
-  callback.Run(gfx::SwapResult::SWAP_ACK);
+  callback.Run();
   return true;
 }