1 files changed, 10 insertions, 2 deletions
diff --git a/chromium/third_party/libvpx/source/libvpx/vp8/encoder/lookahead.h b/chromium/third_party/libvpx/source/libvpx/vp8/encoder/lookahead.h
index cf56b75b7d5..cad68e639fb 100644
--- a/chromium/third_party/libvpx/source/libvpx/vp8/encoder/lookahead.h
+++ b/chromium/third_party/libvpx/source/libvpx/vp8/encoder/lookahead.h
@@ -7,11 +7,15 @@
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
-#ifndef LOOKAHEAD_H
-#define LOOKAHEAD_H
+#ifndef VP8_ENCODER_LOOKAHEAD_H_
+#define VP8_ENCODER_LOOKAHEAD_H_
 #include "vpx_scale/yv12config.h"
 #include "vpx/vpx_integer.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct lookahead_entry
 {
     YV12_BUFFER_CONFIG  img;
@@ -106,4 +110,8 @@ unsigned int
 vp8_lookahead_depth(struct lookahead_ctx *ctx);
 
 
+#ifdef __cplusplus
+}  // extern "C"
 #endif
+
+#endif  // VP8_ENCODER_LOOKAHEAD_H_