tree d57ff87160a56b962eef3b6acddbf3002e6c40a8
parent 2c787ec4d832b1ed747222be65a313068fbbfac0
author James Robinson <jamesr@google.com> 1493151327 -0700
committer James Robinson <jamesr@google.com> 1493151327 -0700

Enable libpng features used by cairo

This enables the bKGD (background color) feature and time conversion
utilities which are used by cairo. Specifically this flips the
following defines on:

PNG_CONVERT_tIME_SUPPORTED
PNG_bKGD_SUPPORTED
PNG_tIME_SUPPORTED

Change-Id: I59396acd54c760d2f28b3159973993b3676c5c4c