drm: GPU process manages VGEM fd.

ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h

Index: ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h
diff --git a/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h b/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h
index 1662ea3e3d3d9b5dc3eab0307e39c411f3b9bef3..828cc5ea760c2582c0bc3b9a5ffa6e916046b57f 100644
--- a/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h
+++ b/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.h
@@ -75,7 +75,8 @@ class DrmGpuPlatformSupport : public GpuPlatformSupport {
   void OnTakeDisplayControl();
   void OnRelinquishDisplayControl();
   void OnAddGraphicsDevice(const base::FilePath& path,
-                           const base::FileDescriptor& fd);
+                           const base::FileDescriptor& fd,
+                           bool is_vgem);
   void OnRemoveGraphicsDevice(const base::FilePath& path);
   void OnGetHDCPState(int64_t display_id);
   void OnSetHDCPState(int64_t display_id, HDCPState state);