Propagate supported scanout formats from driver to SurfaceFactoryOzone.

ui/ozone/platform/drm/gpu/drm_thread_proxy.cc

Index: ui/ozone/platform/drm/gpu/drm_thread_proxy.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_thread_proxy.cc b/ui/ozone/platform/drm/gpu/drm_thread_proxy.cc
index b46e11624ab33268f802299a1f8e5a4ca4986a18..6b4c0174d354924afcfb81b4ee4b6ebca977cde6 100644
--- a/ui/ozone/platform/drm/gpu/drm_thread_proxy.cc
+++ b/ui/ozone/platform/drm/gpu/drm_thread_proxy.cc
@@ -39,4 +39,11 @@ scoped_refptr<GbmBuffer> DrmThreadProxy::CreateBuffer(
   return buffer;
 }
 
+void DrmThreadProxy::GetSupportedFormats(
+    std::vector<uint32_t>* support_formats) {
+  PostSyncTask(drm_thread_.task_runner(),
+               base::Bind(&DrmThread::GetSupportedFormats,
+                          base::Unretained(&drm_thread_), support_formats));
+}
+
 }  // namespace ui