[GStreamer] GRefPtr template specialization for GstObject

https://bugs.webkit.org/show_bug.cgi?id=266967

Reviewed by Carlos Garcia Campos.

Without this the leak tracer might report leaks from MediaPlayerPrivateGStreamer::updateTracks()
that uses a GRefPtr<GstObject>. I don't think it's a real one, because without this patch GRefPtr
would fallback to the default GObject ref/unref, which is also OK, but not tracked by the leak tracer.

* Source/WebCore/platform/graphics/gstreamer/GRefPtrGStreamer.cpp:
(WTF::adoptGRef):
(WTF::refGPtr<GstObject>):
(WTF::derefGPtr<GstObject>):
* Source/WebCore/platform/graphics/gstreamer/GRefPtrGStreamer.h:

Canonical link: https://commits.webkit.org/272553@main

Author: philn

Source/WebCore/platform/graphics/gstreamer/GRefPtrGStreamer.cpp

@@ -55,6 +55,25 @@ template<> void derefGPtr<GstMiniObject>(GstMiniObject* ptr)
         gst_mini_object_unref(ptr);
 }
 
+template<> GRefPtr<GstObject> adoptGRef(GstObject* ptr)
+{
+    return GRefPtr<GstObject>(ptr, GRefPtrAdopt);
+}
+
+template<> GstObject* refGPtr<GstObject>(GstObject* ptr)
+{
+    if (ptr)
+        gst_object_ref(ptr);
+
+    return ptr;
+}
+
+template<> void derefGPtr<GstObject>(GstObject* ptr)
+{
+    if (ptr)
+        gst_object_unref(ptr);
+}
+
 template <> GRefPtr<GstElement> adoptGRef(GstElement* ptr)
 {
     ASSERT(!ptr || !g_object_is_floating(ptr));

Source/WebCore/platform/graphics/gstreamer/GRefPtrGStreamer.h

@@ -56,6 +56,10 @@ template<> GRefPtr<GstMiniObject> adoptGRef(GstMiniObject* ptr);
 template<> GstMiniObject* refGPtr<GstMiniObject>(GstMiniObject* ptr);
 template<> void derefGPtr<GstMiniObject>(GstMiniObject* ptr);
 
+template<> GRefPtr<GstObject> adoptGRef(GstObject* ptr);
+template<> GstObject* refGPtr<GstObject>(GstObject* ptr);
+template<> void derefGPtr<GstObject>(GstObject* ptr);
+
 template<> GRefPtr<GstElement> adoptGRef(GstElement* ptr);
 template<> GstElement* refGPtr<GstElement>(GstElement* ptr);
 template<> void derefGPtr<GstElement>(GstElement* ptr);