[lasem] mathml:itex: don't force measure on update if not needed.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit e9e7d75fa236343aa7bf3d0aca5e8c272b31233d
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Wed Sep 26 14:00:53 2012 +0200

    mathml:itex: don't force measure on update if not needed.

 src/lsmmathmlitexelement.c |   13 ++++---------
 1 files changed, 4 insertions(+), 9 deletions(-)
---
diff --git a/src/lsmmathmlitexelement.c b/src/lsmmathmlitexelement.c
index 7d696e3..43466f9 100644
--- a/src/lsmmathmlitexelement.c
+++ b/src/lsmmathmlitexelement.c
@@ -52,11 +52,6 @@ _update (LsmMathmlElement *self, LsmMathmlStyle *style)
 	GString *string;
 	gboolean need_conversion;
 
-	if (itex_element->math != NULL) {
-		lsm_dom_node_changed (LSM_DOM_NODE (itex_element->math));
-		LSM_MATHML_ELEMENT (itex_element->math)->need_measure = TRUE;
-	}
-
 	if (style->display == LSM_MATHML_DISPLAY_INLINE)
 		string = g_string_new ("$");
 	else
@@ -97,10 +92,10 @@ _update (LsmMathmlElement *self, LsmMathmlStyle *style)
 
 	g_string_free (string, FALSE);
 
-	if (itex_element->math != NULL)
-		lsm_mathml_element_update (itex_element->math, style);
-
-	self->need_measure = TRUE;
+	if (itex_element->math != NULL) {
+		lsm_dom_node_changed (LSM_DOM_NODE (itex_element->math));
+		self->need_measure = lsm_mathml_element_update (itex_element->math, style);
+	}
 }
 
 static const LsmMathmlBbox *