Propagate supported scanout formats from driver to SurfaceFactoryOzone.

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

Index: ui/ozone/platform/drm/gpu/drm_thread.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_thread.cc b/ui/ozone/platform/drm/gpu/drm_thread.cc
index 63ec6f96db21303b523ab5bbb93e20951b93b4bb..e95883c99915ab61e1a241b2c66f856c3955e6a2 100644
--- a/ui/ozone/platform/drm/gpu/drm_thread.cc
+++ b/ui/ozone/platform/drm/gpu/drm_thread.cc
@@ -106,6 +106,12 @@ void DrmThread::CreateBuffer(gfx::AcceleratedWidget widget,
   *buffer = GbmBuffer::CreateBuffer(gbm, format, size, usage);
 }
 
+void DrmThread::GetScanoutFormats(
+    gfx::AcceleratedWidget widget,
+    std::vector<gfx::BufferFormat>* scanout_formats) {
+  display_manager_->GetScanoutFormats(widget, scanout_formats);
+}
+
 void DrmThread::SchedulePageFlip(gfx::AcceleratedWidget widget,
                                  const std::vector<OverlayPlane>& planes,
                                  const SwapCompletionCallback& callback) {