Upgrade to libxml 2.9.2 and libxslt 1.1.28

third_party/libxml/src/save.h

+/*
+ * Summary: Internal Interfaces for saving in libxml2
+ * Description: this module describes a few interfaces which were
+ *              addded along with the API changes in 2.9.0
+ *              those are private routines at this point
+ *
+ * Copy: See Copyright for the status of this software.
+ *
+ * Author: Daniel Veillard
+ */
+
+#ifndef __XML_SAVE_H__
+#define __XML_SAVE_H__
+
+#include <libxml/tree.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef LIBXML_OUTPUT_ENABLED
+void xmlBufAttrSerializeTxtContent(xmlBufPtr buf, xmlDocPtr doc,
+                                   xmlAttrPtr attr, const xmlChar * string);
+void xmlBufDumpNotationTable(xmlBufPtr buf, xmlNotationTablePtr table);
+void xmlBufDumpElementDecl(xmlBufPtr buf, xmlElementPtr elem);
+void xmlBufDumpAttributeDecl(xmlBufPtr buf, xmlAttributePtr attr);
+void xmlBufDumpEntityDecl(xmlBufPtr buf, xmlEntityPtr ent);
+xmlChar *xmlEncodeAttributeEntities(xmlDocPtr doc, const xmlChar *input);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __XML_SAVE_H__ */
+