[chromium] refactor duplicated list of test source files
Created attachment 91138 [details] Patch
Created attachment 91139 [details] Patch
Attachment 91139 [details] did not build on chromium: Build output: http://queues.webkit.org/results/8513089
Committed r84953: <http://trac.webkit.org/changeset/84953>
http://trac.webkit.org/changeset/84953 might have broken Chromium Mac Release