Backout bc88f1602468, Bug 842911 - Remove support for Samsung mini-app mode r=blassey a=blassey
Bug 851473 - Include the correct prompt string when switching from/to permanent private browsing mode in the preferences dialog; r=jdm a=lsblakk

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extra : transplant_source : O%10%03%01%B6%5B%00%F2%81%C0%E0%E4%9D%C5%CFJ%89-%BC%C3