ozone: Implement zero/one-copy texture for Ozone GBM.

ui/ozone/platform/drm/common/native_pixmap_manager_gbm.h

Index: ui/ozone/platform/drm/common/native_pixmap_manager_gbm.h
diff --git a/ui/ozone/platform/drm/common/native_pixmap_manager_gbm.h b/ui/ozone/platform/drm/common/native_pixmap_manager_gbm.h
index a5f6aa28b0de08011cc0d810ffb20ceb891c33a1..dfe654e5983cf03dd04925339709a88fe1e27c76 100644
--- a/ui/ozone/platform/drm/common/native_pixmap_manager_gbm.h
+++ b/ui/ozone/platform/drm/common/native_pixmap_manager_gbm.h
@@ -22,6 +22,11 @@ class NativePixmapManagerGbm : public NativePixmapManager {
   void Initialize(const base::FileDescriptor& device_fd) override;
   std::vector<Configuration> GetSupportedNativePixmapConfigurations()
       const override;
+  scoped_refptr<NativePixmap> CreateFromFileDescriptor(
+      base::FileDescriptor handle,
+      gfx::Size size,
+      SurfaceFactoryOzone::BufferFormat format,
+      SurfaceFactoryOzone::BufferUsage usage) override;
 
  private:
   base::ScopedFD vgem_fd_;