Implement DRM Native Pixmap using prime buffer

ui/ozone/platform/wayland/ozone_platform_wayland.cc

Index: ui/ozone/platform/wayland/ozone_platform_wayland.cc
diff --git a/ui/ozone/platform/wayland/ozone_platform_wayland.cc b/ui/ozone/platform/wayland/ozone_platform_wayland.cc
index a83fdc28dc0c80c80e961a900b8567d61d5e3820..9e5eb150ce3b900f4d647ce529b0d243659034c4 100644
--- a/ui/ozone/platform/wayland/ozone_platform_wayland.cc
+++ b/ui/ozone/platform/wayland/ozone_platform_wayland.cc
@@ -68,11 +68,6 @@ class OzonePlatformWayland : public OzonePlatform {
     return make_scoped_ptr(new NativeDisplayDelegateOzone);
   }
 
-  base::ScopedFD OpenClientNativePixmapDevice() const override {
-    NOTIMPLEMENTED();
-    return base::ScopedFD();
-  }
-
   void InitializeUI() override {
     display_.reset(new WaylandDisplay);
     if (!display_->Initialize())