SkiaRenderer: fix vulkan rendering issue.

Bug: None
Change-Id: If5fc6dcdc8f5a24a5b34f9b2811f48fdd55a77aa
Reviewed-on: https://chromium-review.googlesource.com/c/1349675Reviewed-by: weiliangc <weiliangc@chromium.org>
Commit-Queue: Peng Huang <penghuang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610661}

components/viz/service/display_embedder/skia_output_surface_impl.cc

@@ -374,7 +374,7 @@ sk_sp<SkImage> SkiaOutputSurfaceImpl::MakePromiseSkImage(
         *metadata.backend_format.getGLTarget());
   } else {
 #if BUILDFLAG(ENABLE_VULKAN)
-    metadata.backend_format = GrBackendFormat::MakeVk(
+    metadata.driver_backend_format = GrBackendFormat::MakeVk(
         gfx::SkColorTypeToVkFormat(metadata.color_type));
 #else
     NOTREACHED();