VaapiVideoAccelerator: make Vaapi accelerator work with ozone

ui/ozone/platform/dri/ozone_platform_gbm.cc

Index: ui/ozone/platform/dri/ozone_platform_gbm.cc
diff --git a/ui/ozone/platform/dri/ozone_platform_gbm.cc b/ui/ozone/platform/dri/ozone_platform_gbm.cc
index cf1027db81fa012288d055406534fdebb8202040..a5ba3475d0c8bdf1aff485b34fa63335df3300b9 100644
--- a/ui/ozone/platform/dri/ozone_platform_gbm.cc
+++ b/ui/ozone/platform/dri/ozone_platform_gbm.cc
@@ -127,7 +127,8 @@ class OzonePlatformGbm : public OzonePlatform {
     vt_manager_.reset(new VirtualTerminalManager());
     // Needed since the browser process creates the accelerated widgets and that
     // happens through SFO.
-    surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
+    if (!surface_factory_ozone_)
+      surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
     device_manager_ = CreateDeviceManager();
     gpu_platform_support_host_.reset(new GpuPlatformSupportHostGbm());
     cursor_factory_ozone_.reset(new BitmapCursorFactoryOzone);