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 344422ba9e55fa0103fa569d8127ea1180857481..8c5560c805c4742f3c1dbb9e36197a578f21c33a 100644
--- a/ui/ozone/platform/dri/ozone_platform_gbm.cc
+++ b/ui/ozone/platform/dri/ozone_platform_gbm.cc
@@ -115,7 +115,8 @@ 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 DriGpuPlatformSupportHost());
     cursor_factory_ozone_.reset(new BitmapCursorFactoryOzone);