libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_context_tree.c

Index: source/libvpx/vp9/encoder/vp9_context_tree.c
===================================================================
--- source/libvpx/vp9/encoder/vp9_context_tree.c	(revision 292072)
+++ source/libvpx/vp9/encoder/vp9_context_tree.c	(working copy)
@@ -30,13 +30,13 @@
   for (i = 0; i < MAX_MB_PLANE; ++i) {
     for (k = 0; k < 3; ++k) {
       CHECK_MEM_ERROR(cm, ctx->coeff[i][k],
-                      vpx_memalign(16, num_pix * sizeof(int16_t)));
+                      vpx_memalign(16, num_pix * sizeof(*ctx->coeff[i][k])));
       CHECK_MEM_ERROR(cm, ctx->qcoeff[i][k],
-                      vpx_memalign(16, num_pix * sizeof(int16_t)));
+                      vpx_memalign(16, num_pix * sizeof(*ctx->qcoeff[i][k])));
       CHECK_MEM_ERROR(cm, ctx->dqcoeff[i][k],
-                      vpx_memalign(16, num_pix * sizeof(int16_t)));
+                      vpx_memalign(16, num_pix * sizeof(*ctx->dqcoeff[i][k])));
       CHECK_MEM_ERROR(cm, ctx->eobs[i][k],
-                      vpx_memalign(16, num_pix * sizeof(uint16_t)));
+                      vpx_memalign(16, num_pix * sizeof(*ctx->eobs[i][k])));
       ctx->coeff_pbuf[i][k]   = ctx->coeff[i][k];
       ctx->qcoeff_pbuf[i][k]  = ctx->qcoeff[i][k];
       ctx->dqcoeff_pbuf[i][k] = ctx->dqcoeff[i][k];