Split Au type into separate crate, with minimal dependencies.

components/script/Cargo.toml

@@ -12,6 +12,9 @@ path = "lib.rs"
 [features]
 debugmozjs = ['js/debugmozjs']
 
+[dependencies.app_units]
+path = "../app_units"
+
 [dependencies.plugins]
 path = "../plugins"
 

components/script/dom/domrect.rs

@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use app_units::Au;
 use dom::bindings::codegen::Bindings::DOMRectBinding;
 use dom::bindings::codegen::Bindings::DOMRectBinding::DOMRectMethods;
 use dom::bindings::global::GlobalRef;
@@ -9,7 +10,6 @@ use dom::bindings::js::Root;
 use dom::bindings::num::Finite;
 use dom::bindings::utils::{Reflector, reflect_dom_object};
 use dom::window::Window;
-use util::geometry::Au;
 
 #[dom_struct]
 pub struct DOMRect {

components/script/dom/element.rs

@@ -4,6 +4,7 @@
 
 //! Element nodes.
 
+use app_units::Au;
 use cssparser::Color;
 use devtools_traits::AttrInfo;
 use dom::activation::Activatable;
@@ -75,7 +76,6 @@ use style::properties::{PropertyDeclaration, PropertyDeclarationBlock, parse_sty
 use style::values::CSSFloat;
 use style::values::specified::{self, CSSColor, CSSRGBA};
 use url::UrlParser;
-use util::geometry::Au;
 use util::str::{DOMString, LengthOrPercentageOrAuto};
 
 #[dom_struct]

components/script/dom/node.rs

@@ -4,6 +4,7 @@
 
 //! The core DOM types. Defines the basic DOM hierarchy as well as all the HTML elements.
 
+use app_units::Au;
 use core::nonzero::NonZero;
 use devtools_traits::NodeInfo;
 use document_loader::DocumentLoader;
@@ -64,7 +65,6 @@ use std::slice::ref_slice;
 use std::sync::Arc;
 use string_cache::{Atom, Namespace, QualName};
 use style::properties::ComputedValues;
-use util::geometry::Au;
 use util::str::DOMString;
 use util::task_state;
 use uuid;

components/script/dom/window.rs

@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use app_units::Au;
 use devtools_traits::{ScriptToDevtoolsControlMsg, TimelineMarker, TimelineMarkerType};
 use dom::bindings::callback::ExceptionHandling;
 use dom::bindings::cell::DOMRefCell;
@@ -72,7 +73,7 @@ use string_cache::Atom;
 use time;
 use timers::{IsInterval, TimerCallback, TimerId, TimerManager};
 use url::Url;
-use util::geometry::{self, Au, MAX_RECT};
+use util::geometry::{self, MAX_RECT};
 use util::str::{DOMString, HTML_SPACE_CHARACTERS};
 use util::{breakpoint, opts};
 use webdriver_handlers::jsval_to_webdriver;

components/script/layout_interface.rs

@@ -6,6 +6,7 @@
 //! interface helps reduce coupling between these two components, and enables
 //! the DOM to be placed in a separate crate from layout.
 
+use app_units::Au;
 use dom::node::LayoutData;
 use euclid::point::Point2D;
 use euclid::rect::Rect;
@@ -28,7 +29,6 @@ use style::animation::PropertyAnimation;
 use style::media_queries::MediaQueryList;
 use style::stylesheets::Stylesheet;
 use url::Url;
-use util::geometry::Au;
 pub use dom::node::TrustedNodeAddress;
 
 /// Asynchronous messages that script can send to layout.

components/script/lib.rs

@@ -33,6 +33,7 @@
 #![plugin(string_cache_plugin)]
 #![plugin(plugins)]
 
+extern crate app_units;
 #[macro_use]
 extern crate bitflags;
 #[macro_use]