Bug 845734 - Fix rebase error when applying mozilla-central patch to beta - r=bjacob a=bajaj

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extra : rebase_source : a60966d39d26166a9c0f84252c372b9342d05a48
Bug 863338: Update NSPR from NSPR_4_9_6_BETA2 to NSPR_4_9_6_RTM. a=akeybl