ozone: Introduce ClientPixmap and ClientPixmapFactory for non-GPU processes.

ui/ozone/platform/drm/gpu/gbm_surface_factory.h

Index: ui/ozone/platform/drm/gpu/gbm_surface_factory.h
diff --git a/ui/ozone/platform/drm/gpu/gbm_surface_factory.h b/ui/ozone/platform/drm/gpu/gbm_surface_factory.h
index 0bc01b3be4fb52b4bf5738f9df58f91573a40e36..01d0afc98733fd09c647baade031627b7cf5eb58 100644
--- a/ui/ozone/platform/drm/gpu/gbm_surface_factory.h
+++ b/ui/ozone/platform/drm/gpu/gbm_surface_factory.h
@@ -37,10 +37,9 @@ class GbmSurfaceFactory : public DrmSurfaceFactory {
   scoped_refptr<ui::NativePixmap> CreateNativePixmap(
       gfx::AcceleratedWidget widget,
       gfx::Size size,
-      BufferFormat format,
-      BufferUsage usage) override;
+      NativePixmapFormat format,
+      NativePixmapUsage usage) override;
   bool CanShowPrimaryPlaneAsOverlay() override;
-  bool CanCreateNativePixmap(BufferUsage usage) override;
 
  private:
   scoped_refptr<GbmDevice> GetGbmDevice(gfx::AcceleratedWidget widget);