[gthumb] Use g_content_type_is_a instead of gnome_vfs_mime_type_get_equivalence

[Michael J. Chudobiak <mjc src gnome org>]

commit 78a75910ee84abbcb856a441c3686182bd99824f
Author: Michael J. Chudobiak <mjc avtechpulse com>
Date:   Wed Apr 22 15:20:52 2009 -0400

    Use g_content_type_is_a instead of gnome_vfs_mime_type_get_equivalence
---
 libgthumb/file-utils.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/libgthumb/file-utils.c b/libgthumb/file-utils.c
index b5f5d9f..74d5691 100644
--- a/libgthumb/file-utils.c
+++ b/libgthumb/file-utils.c
@@ -831,8 +831,7 @@ mime_type_is_raw (const char *mime_type)
 	return 	   mime_type_is (mime_type, "application/x-crw")	/* ? */
 		|| mime_type_is (mime_type, "image/x-raw")              /* mimelnk */
 		|| mime_type_is (mime_type, "image/x-dcraw")		/* freedesktop.org.xml */
-		|| (gnome_vfs_mime_type_get_equivalence (mime_type, "image/x-dcraw") 
-		    != GNOME_VFS_MIME_UNRELATED);			/* freedesktop.org.xml - this should
+		|| g_content_type_is_a (mime_type, "image/x-dcraw");	/* freedesktop.org.xml - this should
 									   catch most RAW formats, which are
 									   registered as sub-classes of
 									   image/x-dcraw */