libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_lookahead.c

Index: source/libvpx/vp9/encoder/vp9_lookahead.c
===================================================================
--- source/libvpx/vp9/encoder/vp9_lookahead.c	(revision 291857)
+++ source/libvpx/vp9/encoder/vp9_lookahead.c	(working copy)
@@ -50,6 +50,9 @@
                                          unsigned int height,
                                          unsigned int subsampling_x,
                                          unsigned int subsampling_y,
+#if CONFIG_VP9_HIGHBITDEPTH
+                                         int use_highbitdepth,
+#endif
                                          unsigned int depth) {
   struct lookahead_ctx *ctx = NULL;
 
@@ -70,6 +73,9 @@
     for (i = 0; i < depth; i++)
       if (vp9_alloc_frame_buffer(&ctx->buf[i].img,
                                  width, height, subsampling_x, subsampling_y,
+#if CONFIG_VP9_HIGHBITDEPTH
+                                 use_highbitdepth,
+#endif
                                  VP9_ENC_BORDER_IN_PIXELS))
         goto bail;
   }