Bug 878037 - unit test to make sure we can clone a static imgIRequest. r=seth

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extra : rebase_source : 0b6a360ab04719b648c2eaaf9310a1bbb81be881
Bug 878037 - print preview crash test for printing a bullet with an animated image. r=smaug

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extra : rebase_source : 2bba8a640fd6c5099fbaa7ae28970f941d27efb3