Bug 1311599 - Disable hsts tests on linux32-debug only. r=kmckinley

MozReview-Commit-ID: 2V5Xrfpwy3a

--HG--
extra : rebase_source : c02f00ac03368b5ce52598c23964e39f892e6007

dom/security/test/hsts/browser.ini

@@ -1,4 +1,5 @@
 [DEFAULT]
+skip-if = (os == 'linux' && debug && bits == 32) # bug 1311599
 support-files =
   head.js
   file_priming-top.html