1 files changed, 10 insertions, 2 deletions
diff --git a/chromium/third_party/libvpx/source/libvpx/vp8/encoder/modecosts.h b/chromium/third_party/libvpx/source/libvpx/vp8/encoder/modecosts.h
index 99ef119d5dd..9281551c8d5 100644
--- a/chromium/third_party/libvpx/source/libvpx/vp8/encoder/modecosts.h
+++ b/chromium/third_party/libvpx/source/libvpx/vp8/encoder/modecosts.h
@@ -9,9 +9,17 @@
  */
 
 
-#ifndef __INC_MODECOSTS_H
-#define __INC_MODECOSTS_H
+#ifndef VP8_ENCODER_MODECOSTS_H_
+#define VP8_ENCODER_MODECOSTS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 void vp8_init_mode_costs(VP8_COMP *x);
 
+#ifdef __cplusplus
+}  // extern "C"
 #endif
+
+#endif  // VP8_ENCODER_MODECOSTS_H_