Bug 850954 - Allow implicit copying of RelocatableValue; r=billm

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extra : rebase_source : 3190a0178339e997420c27166caeb67dcda3a651
Bug 844527: Update nsSTSPreloadList with latest Chromium additions (2013-03-20 edition), r=bsmith

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extra : rebase_source : 96acba1d48bd8096f8a54ebdcfce36d6aafb1f76
Bug 854584 - Add metrotestharness to TEST_HARNESS_BINS. r=mbrubeck