Remove opaque frame buffer in destructor of GbmBufferBase.

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

Index: ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
diff --git a/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc b/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
index 3342791fc49b121f8a10afaf6e4925aa4862189a..7dac027efbb9fba89c2609e93674566103d35329 100644
--- a/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
+++ b/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
@@ -56,6 +56,8 @@ GbmBufferBase::GbmBufferBase(const scoped_refptr<GbmDevice>& drm,
 GbmBufferBase::~GbmBufferBase() {
   if (framebuffer_)
     drm_->RemoveFramebuffer(framebuffer_);
+  if (opaque_framebuffer_)
+    drm_->RemoveFramebuffer(opaque_framebuffer_);
 }
 
 uint32_t GbmBufferBase::GetFramebufferId() const {