Cleanup the XML directory in public includes.

src/xml/SkXMLParser.cpp

Index: src/xml/SkXMLParser.cpp
diff --git a/src/xml/SkXMLParser.cpp b/src/xml/SkXMLParser.cpp
index 63929a94e2f2b4a3b5b2e572728e6d0fddc8939f..ccc7aa4b02e5bac014b3f46d9599347afda1fc3c 100644
--- a/src/xml/SkXMLParser.cpp
+++ b/src/xml/SkXMLParser.cpp
@@ -59,6 +59,21 @@ SkXMLParser::~SkXMLParser()
 {
 }
 
+bool SkXMLParser::parse(SkStream& docStream)
+{
+    return false;
+}
+
+bool SkXMLParser::parse(const char doc[], size_t len)
+{
+    return false;
+}
+
+void SkXMLParser::GetNativeErrorString(int error, SkString* str)
+{
+
+}
+
 bool SkXMLParser::startElement(const char elem[])
 {
     return this->onStartElement(elem);