Bug 1061050 - Fix more bad implicit constructors in editor; r=roc

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extra : rebase_source : 4bc00b1cf3807cfe7267cc20ed618ed2ce827a64
Bug 1060980 - Fix more bad implicit constructors in the media code; r=roc

--HG--
extra : rebase_source : 14da50f7d2e37e04452445dea575ea4d582e8efd
Bug 1061051 - Fix more bad implicit constructors in the media code; r=roc

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extra : rebase_source : c3d5f6a1cc95f4a7f123129e14a9a0c57d00ef38