update ignored-tests.txt to accound for acceptable changes due to r13710

TBR=robertphillips@google.com

Review URL: https://codereview.chromium.org/189803005

git-svn-id: http://skia.googlecode.com/svn/trunk@13712 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed