Vulkan config in dm

src/gpu/vk/GrVkGpu.cpp

Index: src/gpu/vk/GrVkGpu.cpp
diff --git a/src/gpu/vk/GrVkGpu.cpp b/src/gpu/vk/GrVkGpu.cpp
index 428c2ff6bd363ad52b779cba73d3fe1480de1b8c..280346fda1cf75733b0733d0c5e713d8aea03052 100644
--- a/src/gpu/vk/GrVkGpu.cpp
+++ b/src/gpu/vk/GrVkGpu.cpp
@@ -63,10 +63,10 @@ VKAPI_ATTR VkBool32 VKAPI_CALL DebugReportCallback(
 
 GrGpu* GrVkGpu::Create(GrBackendContext backendContext, const GrContextOptions& options,
                        GrContext* context) {
-    SkAutoTUnref<const GrVkBackendContext> vkBackendContext(
-                                       reinterpret_cast<const GrVkBackendContext*>(backendContext));
+    const GrVkBackendContext* vkBackendContext =
+        reinterpret_cast<const GrVkBackendContext*>(backendContext);
     if (!vkBackendContext) {
-        vkBackendContext.reset(GrVkBackendContext::Create());
+        vkBackendContext = GrVkBackendContext::Create();
         if (!vkBackendContext) {
             return nullptr;
         }