Refer to the correct file for rebaselining benches.

The file has moved, so update the instructions in the
expectations file.

R=bensong@google.com

Review URL: https://codereview.chromium.org/23033009

git-svn-id: http://skia.googlecode.com/svn/trunk@10799 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed