Roll HarfBuzz to 0.9.32

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

Index: third_party/harfbuzz-ng/src/hb-buffer.h
diff --git a/third_party/harfbuzz-ng/src/hb-buffer.h b/third_party/harfbuzz-ng/src/hb-buffer.h
index 3086851b012f7189042b8f873ec0f48ef0d32eb4..7b0c9204688673ccead821d8a7855e6da27295cb 100644
--- a/third_party/harfbuzz-ng/src/hb-buffer.h
+++ b/third_party/harfbuzz-ng/src/hb-buffer.h
@@ -186,12 +186,25 @@ hb_buffer_flags_t
 hb_buffer_get_flags (hb_buffer_t *buffer);
 
 
+
+#define HB_BUFFER_REPLACEMENT_CODEPOINT_DEFAULT 0xFFFDu
+
+/* Sets codepoint used to replace invalid UTF-8/16/32 entries.
+ * Default is 0xFFFDu. */
+void
+hb_buffer_set_replacement_codepoint (hb_buffer_t    *buffer,
+				     hb_codepoint_t  replacement);
+
+hb_codepoint_t
+hb_buffer_get_replacement_codepoint (hb_buffer_t    *buffer);
+
+
 /* Resets the buffer.  Afterwards it's as if it was just created,
  * except that it has a larger buffer allocated perhaps... */
 void
 hb_buffer_reset (hb_buffer_t *buffer);
 
-/* Like reset, but does NOT clear unicode_funcs. */
+/* Like reset, but does NOT clear unicode_funcs and replacement_codepoint. */
 void
 hb_buffer_clear_contents (hb_buffer_t *buffer);
 
@@ -240,6 +253,14 @@ hb_buffer_add_utf32 (hb_buffer_t    *buffer,
 		     unsigned int    item_offset,
 		     int             item_length);
 
+/* Like add_utf32 but does NOT check for invalid Unicode codepoints. */
+void
+hb_buffer_add_codepoints (hb_buffer_t          *buffer,
+			  const hb_codepoint_t *text,
+			  int                   text_length,
+			  unsigned int          item_offset,
+			  int                   item_length);
+
 
 /* Clears any new items added at the end */
 hb_bool_t