[ozone] Keep the queue of surfaceless buffers inside gl_surface_ozone

ui/ozone/platform/drm/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/linux/pkg_config.gni")
 import("//ui/ozone/ozone.gni")
 
 declare_args() {
   use_mesa_platform_null = false
   use_drm_atomic = false
@@ skipping 41 matching lines @@
     "gpu/hardware_display_controller.cc",
     "gpu/hardware_display_controller.h",
     "gpu/hardware_display_plane.cc",
     "gpu/hardware_display_plane.h",
     "gpu/hardware_display_plane_manager.cc",
     "gpu/hardware_display_plane_manager.h",
     "gpu/hardware_display_plane_manager_legacy.cc",
     "gpu/hardware_display_plane_manager_legacy.h",
     "gpu/overlay_plane.cc",
     "gpu/overlay_plane.h",
+    "gpu/page_flip_request.cc",
+    "gpu/page_flip_request.h",
     "gpu/scanout_buffer.h",
     "gpu/scoped_drm_types.cc",
     "gpu/scoped_drm_types.h",
     "gpu/screen_manager.cc",
     "gpu/screen_manager.h",
     "host/channel_observer.h",
     "host/display_manager.cc",
     "host/display_manager.h",
     "host/drm_cursor.cc",
     "host/drm_cursor.h",
@@ skipping 107 matching lines @@
       "//ui/events/ozone:events_ozone_layout",
     ]
 
     public_configs = [ ":libgbm" ]
 
     if (use_mesa_platform_null) {
       defines += [ "USE_MESA_PLATFORM_NULL" ]
     }
   }
 }