Update libpng to 1.6.22beta
authormsarett <msarett@google.com>
Fri, 19 Feb 2016 19:14:43 +0000 (11:14 -0800)
committerCommit bot <commit-bot@chromium.org>
Fri, 19 Feb 2016 19:14:43 +0000 (11:14 -0800)
commit740668d9071b8b767ec4ca344cb31fc0773ac2d5
treeaf6cf019d554aeaa7140a28b02cb0effad8642e9
parentcbc5bccebec983cdd7bea4f10373ec3af115def3
Update libpng to 1.6.22beta

Intel SSE filter optimizations have been upstreamed.  Let's test on
the upstream version (which we can use in Android).

BUG=skia:4573
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1710083007

Review URL: https://codereview.chromium.org/1710083007
DEPS
gyp/codec.gyp
gyp/libpng.gyp
src/codec/SkPngCodec.cpp
src/codec/SkPngFilters.cpp [deleted file]
src/codec/SkPngFilters.h [deleted file]
third_party/libpng/pnglibconf.h