Roll src/third_party/dav1d/libdav1d/ 86ce4a3c5..ace3855a6 (12 commits)

https://chromium.googlesource.com/external/github.com/videolan/dav1d.git/+log/86ce4a3c50c0..ace3855a6037

$ git log 86ce4a3c5..ace3855a6 --date=short --no-merges --format='%ad %ae %s'
2019-03-11 victorien.lecouviour.tuffet x86: remove unused macro arg in SSSE3 cdef_dir
2019-03-11 victorien.lecouviour.tuffet x86: fix number of xmm used in sgr_calc_ab1_ssse3
2019-03-08 victorien.lecouviour.tuffet x86: optimize SSSE3 sgr_calc_ab{1,2}
2019-03-08 victorien.lecouviour.tuffet x86: optimize AVX2 cdef_dir
2019-03-11 jb Update THANKS.md
2019-03-09 janne-vlc build: add "api" to api/soname related versions
2019-03-09 jb Update NEWS for 0.2.1
2019-03-05 janne-vlc let dav1d_version() return the project version
2019-03-04 victorien.lecouviour.tuffet x86: add SSSE3 cdef dir implementation
2019-02-27 martin arm: looprestoration: Simplify a few padding cases in wiener_filter_h_neon
2019-03-06 kylesiefring Use some 8 bit arithmetic in AVX2 CDEF filter
2019-02-24 martin arm: looprestoration: Remove unnecessary includes

Created with:
  roll-dep src/third_party/dav1d/libdav1d

Bug: 924370
Change-Id: I13433378e12b9885ca94b70ec935e9b51ece2cca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1516719
Auto-Submit: Thomas Guilbert <tguilbert@chromium.org>
Reviewed-by: Chrome Cunningham <chcunningham@chromium.org>
Commit-Queue: Chrome Cunningham <chcunningham@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639740}
diff --git a/DEPS b/DEPS
index d5dfacf..27436e8 100644
--- a/DEPS
+++ b/DEPS
@@ -674,7 +674,7 @@
     Var('chromium_git') + '/angle/angle.git' + '@' +  Var('angle_revision'),
 
   'src/third_party/dav1d/libdav1d':
-    Var('chromium_git') + '/external/github.com/videolan/dav1d.git' + '@' + '86ce4a3c50c08f0aaeb0fc341013ca9af61f9e98',
+    Var('chromium_git') + '/external/github.com/videolan/dav1d.git' + '@' + 'ace3855a60379a76624bc01d74bae7fc40233c54',
 
   'src/third_party/dawn':
     Var('dawn_git') + '/dawn.git' + '@' +  Var('dawn_revision'),