gm: if test has no expectations, record its result as no-expectations regardless...

gm: if test has no expectations, record its result as no-expectations regardless of ignoreFailure

After https://code.google.com/p/skia/source/detail?r=11640 ('Ignore any
pdf-poppler GM failures'), there are a bunch of pdf-poppler tests showing up
as failure-ignored at http://c128.i.corp.google.com/production-gm-diffs/latest/view.html

Make them go away.

R=scroggo@google.com

Review URL: https://codereview.chromium.org/26650005

git-svn-id: http://skia.googlecode.com/svn/trunk@11703 2bbb7eff-a529-9590-31e7-b0007b416f81