Bug 877135. Remove HTMLMediaElement::mozLoadFrom since it's nonstandard and no longer needed (setting 'src' to another element's 'currentSrc' works just as well). r=doublec

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extra : rebase_source : f1e04fe469a1757bfabfcf79bbf0fec29faee1c7
Bug 786064. Part 1: Pass aFlags through VectorImage::Draw; FLAG_CLAMP is especially important to avoid taking a deathly-slow tiling path. r=joedrew

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extra : rebase_source : a8f5f9ea9755cf4e2017bb522e99870c2a7f48d5