Bug 891534 - Use asm.js ops for truncated unsigned div/mod, allow div ops to be marked as truncated, r=jandem.
Bug 860242: If box-sizing includes border/padding, then don't add border/padding to cell-width, in fixed table layout's percent-width case. r=dbaron
Bug 885424 part 4: Refactor ComputeFlexContainerMainSize to have a clearer horizontal case vs. vertical case. r=dbaron