Update harfbuzz-ng to 1a5a91dc0d8bf4b72a2f22dc6300b06ad7000b79.

third_party/harfbuzz-ng/src/hb-version.h

Index: third_party/harfbuzz-ng/src/hb-version.h
diff --git a/third_party/harfbuzz-ng/src/hb-language.h b/third_party/harfbuzz-ng/src/hb-version.h
similarity index 64%
rename from third_party/harfbuzz-ng/src/hb-language.h
rename to third_party/harfbuzz-ng/src/hb-version.h
index d3c91fb429a78c60657e265d782f31d102ea9e89..c1e3cab9fdf70eef9213b93c98e5349ebd97e4a7 100644
--- a/third_party/harfbuzz-ng/src/hb-language.h
+++ b/third_party/harfbuzz-ng/src/hb-version.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009  Red Hat, Inc.
+ * Copyright © 2011  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
@@ -21,26 +21,42 @@
  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  *
- * Red Hat Author(s): Behdad Esfahbod
+ * Google Author(s): Behdad Esfahbod
  */
 
-#ifndef HB_LANGUAGE_H
-#define HB_LANGUAGE_H
+#ifndef HB_VERSION_H
+#define HB_VERSION_H
 
 #include "hb-common.h"
 
 HB_BEGIN_DECLS
 
 
-typedef const void *hb_language_t;
+#define HB_VERSION_MAJOR 0
+#define HB_VERSION_MINOR 7
+#define HB_VERSION_MICRO 0
 
-hb_language_t
-hb_language_from_string (const char *str);
+#define HB_VERSION_STRING "0.7.0"
+
+#define HB_VERSION_CHECK(major,minor,micro) \
+	((major)*10000+(minor)*100+(micro) >= \
+	 HB_VERSION_MAJOR*10000+HB_VERSION_MINOR*100+HB_VERSION_MICRO)
+
+
+void
+hb_version (unsigned int *major,
+	    unsigned int *minor,
+	    unsigned int *micro);
 
 const char *
-hb_language_to_string (hb_language_t language);
+hb_version_string (void);
+
+hb_bool_t
+hb_version_check (unsigned int major,
+		  unsigned int minor,
+		  unsigned int micro);
 
 
 HB_END_DECLS
 
-#endif /* HB_LANGUAGE_H */
+#endif /* HB_VERSION_H */