There's a similar bug report in ArchLinux: https://bugs.archlinux.org/task/67105
Supposedly they had some custom patch for libpng that was causing this and removing that helped. Dunno if debian has anything like this. I can confirm that downloading libpng binary from http://www.libpng.org/pub/png/libpng.html and running chromium with that library in LD_PRELOAD fixes the issue completely. -- Best regards, HJ
