style: Move OwnedSlice to style_traits.

Differential Revision: https://phabricator.services.mozilla.com/D30126

components/style/lib.rs

@@ -143,7 +143,6 @@ pub mod logical_geometry;
 pub mod matching;
 #[macro_use]
 pub mod media_queries;
-pub mod owned_slice;
 pub mod parallel;
 pub mod parser;
 pub mod rule_cache;
@@ -189,7 +188,7 @@ pub use html5ever::Prefix;
 #[cfg(feature = "servo")]
 pub use servo_atoms::Atom;
 
-pub use owned_slice::OwnedSlice;
+pub use style_traits::owned_slice::OwnedSlice;
 
 /// The CSS properties supported by the style system.
 /// Generated from the properties.mako.rs template by build.rs

components/style_traits/lib.rs

@@ -89,6 +89,7 @@ pub mod specified_value_info;
 pub mod values;
 #[macro_use]
 pub mod viewport;
+pub mod owned_slice;
 
 pub use crate::specified_value_info::{CssType, KeywordsCollectFn, SpecifiedValueInfo};
 pub use crate::values::{

components/style_traits/owned_slice.rs

@@ -2,6 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+#![allow(unsafe_code)]
+
 //! A replacement for `Box<[T]>` that cbindgen can understand.
 
 use std::marker::PhantomData;