Bump the jpeg memory limit
Commit 59f6c50d set the memory limit to 100M, which turns out to exclude some large, valid jpegs. So, bump things to 300M, matching what was done in gdk-pixbuf.
Commit 59f6c50d set the memory limit to 100M, which turns out to exclude some large, valid jpegs. So, bump things to 300M, matching what was done in gdk-pixbuf.