GTTF: Add a basic new unit test launcher.

third_party/libxml/chromium/libxml_utils.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef THIRD_PARTY_LIBXML_CHROMIUM_LIBXML_UTILS_H_
 #define THIRD_PARTY_LIBXML_CHROMIUM_LIBXML_UTILS_H_
 #pragma once
 
 #include <string>
 
@@ skipping 55 matching lines @@
   std::string NodeName() {
     return XmlStringToStdString(xmlTextReaderConstLocalName(reader_));
   }
 
   // When pointing at a tag, retrieves the value of an attribute.
   // Returns false on failure.
   // E.g. for <foo bar:baz="a">, NodeAttribute("bar:baz", &value)
   // returns true and |value| is set to "a".
   bool NodeAttribute(const char* name, std::string* value);
 
+  // Returns true if the node is a closing element (e.g. </foo>).
+  bool IsClosingElement();
+
   // Helper functions not provided by libxml ----------------------------------
 
   // Return the string content within an element.
   // "<foo>bar</foo>" is a sequence of three nodes:
   // (1) open tag, (2) text, (3) close tag.
   // With the reader currently at (1), this returns the text of (2),
   // and advances past (3).
   // Returns false on error.
   bool ReadElementContent(std::string* content);
 
@@ skipping 82 matching lines @@
 
  private:
   // The underlying libxml xmlTextWriter.
   xmlTextWriterPtr writer_;
 
   // Stores the output.
   xmlBufferPtr buffer_;
 };
 
 #endif  // THIRD_PARTY_LIBXML_CHROMIUM_INCLUDE_LIBXML_LIBXML_UTILS_H_