style: Add a Zero trait that doesn't require Add, and use it in place of num_traits and IsZeroLength.

Use it to be consistent in InsetRect serialization and storage between Servo and
Gecko.

Differential Revision: https://phabricator.services.mozilla.com/D21493
This commit is contained in:
Emilio Cobos Álvarez 2019-02-28 19:03:03 +00:00
parent 4496411edc
commit 7d01114cbf
29 changed files with 179 additions and 186 deletions

View file

@ -20,6 +20,7 @@ use crate::values::specified::url::SpecifiedUrl;
use crate::values::specified::{Angle, NumberOrPercentage};
#[cfg(not(feature = "gecko"))]
use crate::values::Impossible;
use crate::Zero;
use cssparser::{self, BasicParseErrorKind, Parser, Token};
use style_traits::{ParseError, StyleParseErrorKind, ValueParseErrorKind};