NonNegativeNumber: for -moz-box-flex, flex-grow, and flex-shrink.
GreaterThanOrEqualToOneNumber: for stroke-miterlimit.
MozReview-Commit-ID: Kgbt99BPdVA
To make it possible to check the rule type when parsing lengths, we need to pass
the `ParserContext` down through many layers to the place where length units are
parsed.
This change leaves it unused, so it's only to prepare for the next change.
MozReview-Commit-ID: 70YwtcCxnWw
animation_type takes following values:
animation_type="none" for non-animatable properties
animation_type="normal" for animatable properties
animation_type="discrete" for animatable but discrete type of animations
We use string value to distinguish the case where no animation_type is
specified.
animation_type="discrete" will be used in a subsequent patch to make a property
animatable as discrete type.
This allows us to control whether the catchall case in the match expression
that maps Gecko const to Servo enum will be generated.
MozReview-Commit-ID: L65IjTONdfl
While we're here we also:
* remove any code conditional on style_struct.gecko_ffi_name, since all
style structs now do have a corresponding Geckos struct
* add new UIReset and XUL style structs, so that all Gecko structs are
now present (apart from Variables, which is special)
