Replace all uses of the style::stylearc alias with servo_arc.

The alias is left there temporarilly and will be removed completely in a later commit where
also components/style/gecko/generated/structs_{debug|release}.rs are re-generated (they still
use the old alias).

components/script_layout_interface/Cargo.toml

@@ -28,6 +28,7 @@ profile_traits = {path = "../profile_traits"}
 range = {path = "../range"}
 script_traits = {path = "../script_traits"}
 selectors = { path = "../selectors" }
+servo_arc = {path = "../servo_arc"}
 servo_atoms = {path = "../atoms"}
 servo_url = {path = "../url"}
 style = {path = "../style"}

components/script_layout_interface/lib.rs

@@ -30,6 +30,7 @@ extern crate profile_traits;
 extern crate range;
 extern crate script_traits;
 extern crate selectors;
+extern crate servo_arc;
 extern crate servo_atoms;
 extern crate servo_url;
 extern crate style;

components/script_layout_interface/message.rs

@@ -14,6 +14,7 @@ use rpc::LayoutRPC;
 use script_traits::{ConstellationControlMsg, LayoutControlMsg, LayoutMsg as ConstellationMsg};
 use script_traits::{ScrollState, UntrustedNodeAddress, WindowSizeData};
 use script_traits::Painter;
+use servo_arc::Arc as ServoArc;
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
 use std::sync::Arc;
@@ -26,7 +27,7 @@ use style::stylesheets::Stylesheet;
 /// Asynchronous messages that script can send to layout.
 pub enum Msg {
     /// Adds the given stylesheet to the document.
-    AddStylesheet(::style::stylearc::Arc<Stylesheet>),
+    AddStylesheet(ServoArc<Stylesheet>),
 
     /// Change the quirks mode.
     SetQuirksMode(QuirksMode),
@@ -133,7 +134,7 @@ pub struct ScriptReflow {
     /// The document node.
     pub document: TrustedNodeAddress,
     /// The document's list of stylesheets.
-    pub document_stylesheets: Vec<::style::stylearc::Arc<Stylesheet>>,
+    pub document_stylesheets: Vec<ServoArc<Stylesheet>>,
     /// Whether the document's stylesheets have changed since the last script reflow.
     pub stylesheets_changed: bool,
     /// The current window size.

components/script_layout_interface/wrapper_traits.rs

@@ -13,6 +13,7 @@ use gfx_traits::{ByteIndex, FragmentType, combine_id_with_fragment_type};
 use html5ever::{Namespace, LocalName};
 use msg::constellation_msg::{BrowsingContextId, PipelineId};
 use range::Range;
+use servo_arc::Arc;
 use servo_url::ServoUrl;
 use std::fmt::Debug;
 use style::attr::AttrValue;
@@ -24,7 +25,6 @@ use style::dom::OpaqueNode;
 use style::font_metrics::ServoMetricsProvider;
 use style::properties::{CascadeFlags, ComputedValues};
 use style::selector_parser::{PseudoElement, PseudoElementCascadeType, SelectorImpl};
-use style::stylearc::Arc;
 use style::stylist::RuleInclusion;
 use webrender_api::ClipId;