Ozone: Dont hardcode format to YUV when using Overlay Composition.

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

Index: ui/ozone/platform/drm/gpu/drm_window_proxy.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_window_proxy.cc b/ui/ozone/platform/drm/gpu/drm_window_proxy.cc
index 9e2e06f72a28bbacc4f590a37ea8d756dd842cc1..3b2abefed476e1d863d7c74bf74efac2b358ef45 100644
--- a/ui/ozone/platform/drm/gpu/drm_window_proxy.cc
+++ b/ui/ozone/platform/drm/gpu/drm_window_proxy.cc
@@ -33,4 +33,12 @@ void DrmWindowProxy::GetVSyncParameters(
                  widget_, CreateSafeCallback(callback)));
 }
 
+void DrmWindowProxy::GetOverlayBufferConfigurations(
+    const OverlayParamCallback& callback) {
+  drm_thread_->task_runner()->PostTask(
+      FROM_HERE, base::Bind(&DrmThread::GetOverlayBufferConfigurations,
+                            base::Unretained(drm_thread_), widget_,
+                            CreateSafeCallback(callback)));
+}
+
 }  // namespace ui