[Ozone] VAAPI wrapper should open its own render node.

content/common/gpu/media/vaapi_wrapper.h

Index: content/common/gpu/media/vaapi_wrapper.h
diff --git a/content/common/gpu/media/vaapi_wrapper.h b/content/common/gpu/media/vaapi_wrapper.h
index 10eccd91aad36c7253be7f5ab28da9ea685995d4..cb55afbc5c5a9f62edd61fd5a7245a1787f7ecb6 100644
--- a/content/common/gpu/media/vaapi_wrapper.h
+++ b/content/common/gpu/media/vaapi_wrapper.h
@@ -13,6 +13,7 @@
 #include <set>
 #include <vector>
 
+#include "base/files/file.h"
 #include "base/lazy_instance.h"
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
@@ -302,6 +303,11 @@ class CONTENT_EXPORT VaapiWrapper {
   VAContextID va_vpp_context_id_;
   VABufferID va_vpp_buffer_id_;
 
+#if defined(USE_OZONE)
+  // Drm file used to obtain access to the driver interface by VA.
+  base::File drm_file_;
+#endif  // USE_OZONE
+
   // Singleton variable to store supported profile information for encode and
   // decode.
   static base::LazyInstance<LazyProfileInfos> profile_infos_;