Bug 858377 - Increase time skew to avoid intermittent failure in test_393498.js
Includes some test cleanups. a=test-only
Bug 829954 - Part 1: Make AlignedArray fallible. r=jrmuizel, a=akeybl
Bug 829954 - Part 2: Check for allocation success inside AlphaBoxBlur::Blur. r=jrmuizel, a=akeybl