fixed display in SetSelectedIndices()

widget/src/mac/nsListBox.cpp

@@ -419,10 +419,12 @@ nsresult nsListBox::SetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
 		::SetPt(&theCell, 0, 1);
 		::LSetSelect(true, theCell, mListHandle);
 	}
-	::LSetDrawingMode(true, mListHandle);
 	::LAutoScroll(mListHandle);
+	::LSetDrawingMode(true, mListHandle);
 	EndDraw();
 
+	Invalidate(PR_TRUE);
+
 	return NS_OK;
 }
 
@@ -477,6 +479,8 @@ nsresult nsListBox::Deselect()
 	::LSetDrawingMode(true, mListHandle);
 	EndDraw();
 
+	Invalidate(PR_TRUE);
+
 	return NS_OK;
 }