Bug 881270 - Remove the MIME type fallback tests in test_bug391728 because they are testing the incorrect behavior and only happen to work because the test plugin remained blocklisted from a prior test. r=johns

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extra : rebase_source : c7b1d6e6f50f35598d8ca98c1527673542c6798d
Bug 880675 - Remove the writable nsIPluginTag.blocklisted property, which is a poorly-constructed cache of the blocklist data, r=jschoenick r=unfocused

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extra : rebase_source : 04fd347af86d9bb47493ca37455008dedcc570f4
Bug 875454 - Rework handling of per-site plugin permissions in objectloadingcontent such that users can disable or enable plugins per-site no matter what their "global" permission is (currently only plugins marked click-to-activate globally honor per-site overrides). Also change the pageInfo UI such that "use default" is separate from the explicit click-to-play setting. r=jschoenick/jaws

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extra : rebase_source : e5bfba45eaa5619d695c484573b90303cc113181