Fix a minor valgrind warning

src/kernel/qstyle.cpp

@@ -2795,6 +2795,30 @@ QPixmap QStyle::stylePixmap(StylePixmap sp, const QWidget *w, const QStyleOption
   \obsolete
 */
 
+#ifndef QT_NO_COMPAT
+int QStyle::defaultFrameWidth() const
+{
+	QStyleControlElementData ceData;
+	return pixelMetric( PM_DefaultFrameWidth, ceData, CEF_None );
+}
+
+void QStyle::tabbarMetrics( const QWidget* t, int& hf, int& vf, int& ov ) const
+{
+	QStyleControlElementData ceData;
+	hf = pixelMetric( PM_TabBarTabHSpace, ceData, CEF_None, t );
+	vf = pixelMetric( PM_TabBarTabVSpace, ceData, CEF_None, t );
+	ov = pixelMetric( PM_TabBarBaseOverlap, ceData, CEF_None, t );
+}
+
+QSize QStyle::scrollBarExtent() const
+{
+	QStyleControlElementData ceData;
+	ceData.orientation = Qt::Horizontal;
+	return QSize(pixelMetric(PM_ScrollBarExtent, ceData, CEF_None),
+			pixelMetric(PM_ScrollBarExtent, ceData, CEF_None));
+}
+#endif
+
 QStyleControlElementData::QStyleControlElementData() {
 	isNull = true;
 	activePainter = 0;

src/kernel/qstyle.h

@@ -1189,25 +1189,9 @@ public:
     // Old 2.x QStyle API
 
 #ifndef QT_NO_COMPAT
-    int defaultFrameWidth() const
-    {
-	QStyleControlElementData ceData;
-	return pixelMetric( PM_DefaultFrameWidth, ceData, CEF_None );
-    }
-    void tabbarMetrics( const QWidget* t,
-			int& hf, int& vf, int& ov ) const
-    {
-	QStyleControlElementData ceData;
-	hf = pixelMetric( PM_TabBarTabHSpace, ceData, CEF_None, t );
-	vf = pixelMetric( PM_TabBarTabVSpace, ceData, CEF_None, t );
-	ov = pixelMetric( PM_TabBarBaseOverlap, ceData, CEF_None, t );
-    }
-    QSize scrollBarExtent() const
-    {
-	QStyleControlElementData ceData;
-	return QSize(pixelMetric(PM_ScrollBarExtent, ceData, CEF_None),
-		     pixelMetric(PM_ScrollBarExtent, ceData, CEF_None));
-    }
+    int defaultFrameWidth() const;
+    void tabbarMetrics( const QWidget* t, int& hf, int& vf, int& ov ) const;
+    QSize scrollBarExtent() const;
 #endif
 
 public: