libpng: update upstream version 1.6.12 -> 1.6.20
Review URL: https://codereview.chromium.org/1585303003
diff --git a/docs/port_list.md b/docs/port_list.md
index 629cb25..fca74b7 100644
--- a/docs/port_list.md
+++ b/docs/port_list.md
@@ -161,7 +161,7 @@
| [libogg] | 1.3.0 | [libogg-1.3.0.tar.gz][libogg_upstream] | | [] | [] |
| [liboggz] | 1.1.1 | [liboggz-1.1.1.tar.gz][liboggz_upstream] | [727 B][liboggz_patch] | [] | [] |
| [libpciaccess] | 0.13.1 | [libpciaccess-0.13.1.tar.bz2][libpciaccess_upstream] | | [] | [] |
-| [libpng] | 1.6.12 | [libpng-1.6.12.tar.gz][libpng_upstream] | [325 B][libpng_patch] | [] | [] |
+| [libpng] | 1.6.20 | [libpng-1.6.20.tar.gz][libpng_upstream] | [325 B][libpng_patch] | [] | [] |
| [libpng12] | 1.2.51 | [libpng-1.2.51.tar.gz][libpng12_upstream] | | [] | [] |
| [libsm] | 1.2.1 | [libSM-1.2.1.tar.bz2][libsm_upstream] | | [] | [] |
| [libsodium] | 1.0.3 | [libsodium-1.0.3.tar.gz][libsodium_upstream] | | [] | [] |
@@ -717,7 +717,7 @@
[libpciaccess_upstream]: http://www.x.org/releases/X11R7.7/src/everything/libpciaccess-0.13.1.tar.bz2
[libpng]: https://chromium.googlesource.com/webports/+/master/ports/libpng
[libpng_patch]: https://chromium.googlesource.com/webports/+/master/ports/libpng/nacl.patch
-[libpng_upstream]: http://download.sf.net/libpng/libpng-1.6.12.tar.gz
+[libpng_upstream]: http://download.sf.net/libpng/libpng-1.6.20.tar.gz
[libpng12]: https://chromium.googlesource.com/webports/+/master/ports/libpng12
[libpng12_upstream]: http://download.sf.net/libpng/libpng-1.2.51.tar.gz
[libsm]: https://chromium.googlesource.com/webports/+/master/ports/libsm
diff --git a/ports/libpng/pkg_info b/ports/libpng/pkg_info
index b6fe937..38b3849 100644
--- a/ports/libpng/pkg_info
+++ b/ports/libpng/pkg_info
@@ -1,7 +1,7 @@
NAME=libpng
-VERSION=1.6.12
-URL=http://download.sf.net/libpng/libpng-1.6.12.tar.gz
+VERSION=1.6.20
+URL=http://download.sf.net/libpng/libpng-1.6.20.tar.gz
LICENSE=CUSTOM:LICENSE
DEPENDS=(zlib)
-SHA1=6bcd6efa7f20ccee51e70453426d7f4aea7cf4bb
+SHA1=0b3712365571199ef7864177faa0f6e9f4d946ab
CONFLICTS=(libpng12)
