Remove ScriptThread::layout_to_constellation_chan.

components/constellation/pipeline.rs

@@ -166,6 +166,7 @@ impl Pipeline {
                     paint_chan: layout_to_paint_chan.clone().to_opaque(),
                     panic_chan: state.panic_chan.clone(),
                     pipeline_port: pipeline_port,
+                    layout_to_constellation_chan: state.layout_to_constellation_chan.clone(),
                     layout_shutdown_chan: layout_shutdown_chan.clone(),
                     content_process_shutdown_chan: layout_content_process_shutdown_chan.clone(),
                 };
@@ -410,7 +411,6 @@ impl UnprivilegedPipelineContent {
             control_chan: self.script_chan.clone(),
             control_port: mem::replace(&mut self.script_port, None).expect("No script port."),
             constellation_chan: self.constellation_chan.clone(),
-            layout_to_constellation_chan: self.layout_to_constellation_chan.clone(),
             scheduler_chan: self.scheduler_chan.clone(),
             panic_chan: self.panic_chan.clone(),
             bluetooth_thread: self.bluetooth_thread.clone(),

components/script/script_thread.rs

@@ -79,8 +79,8 @@ use script_runtime::{ScriptPort, StackRootTLS, new_rt_and_cx, get_reports};
 use script_traits::CompositorEvent::{KeyEvent, MouseButtonEvent, MouseMoveEvent, ResizeEvent};
 use script_traits::CompositorEvent::{TouchEvent, TouchpadPressureEvent};
 use script_traits::{CompositorEvent, ConstellationControlMsg, EventResult};
-use script_traits::{InitialScriptState, MouseButton, MouseEventType, MozBrowserEvent, NewLayoutInfo};
-use script_traits::{LayoutMsg, ScriptMsg as ConstellationMsg};
+use script_traits::{InitialScriptState, MouseButton, MouseEventType, MozBrowserEvent};
+use script_traits::{NewLayoutInfo, ScriptMsg as ConstellationMsg};
 use script_traits::{ScriptThreadFactory, TimerEvent, TimerEventRequest, TimerSource};
 use script_traits::{TouchEventType, TouchId};
 use std::borrow::ToOwned;
@@ -347,9 +347,6 @@ pub struct ScriptThread {
     /// For communicating load url messages to the constellation
     constellation_chan: IpcSender<ConstellationMsg>,
 
-    /// For communicating layout messages to the constellation
-    layout_to_constellation_chan: IpcSender<LayoutMsg>,
-
     /// The port on which we receive messages from the image cache
     image_cache_port: Receiver<ImageCacheResult>,
 
@@ -572,7 +569,6 @@ impl ScriptThread {
             control_chan: state.control_chan,
             control_port: control_port,
             constellation_chan: state.constellation_chan,
-            layout_to_constellation_chan: state.layout_to_constellation_chan,
             time_profiler_chan: state.time_profiler_chan,
             mem_profiler_chan: state.mem_profiler_chan,
             panic_chan: state.panic_chan,
@@ -1089,6 +1085,7 @@ impl ScriptThread {
             paint_chan,
             panic_chan,
             pipeline_port,
+            layout_to_constellation_chan,
             layout_shutdown_chan,
             content_process_shutdown_chan,
         } = new_layout_info;
@@ -1102,7 +1099,7 @@ impl ScriptThread {
             is_parent: false,
             layout_pair: layout_pair,
             pipeline_port: pipeline_port,
-            constellation_chan: self.layout_to_constellation_chan.clone(),
+            constellation_chan: layout_to_constellation_chan,
             panic_chan: panic_chan,
             paint_chan: paint_chan,
             script_chan: self.control_chan.clone(),

components/script_traits/lib.rs

@@ -100,6 +100,8 @@ pub struct NewLayoutInfo {
     pub pipeline_port: IpcReceiver<LayoutControlMsg>,
     /// A channel for sending panics on
     pub panic_chan: IpcSender<PanicMsg>,
+    /// A sender for the layout thread to communicate to the constellation.
+    pub layout_to_constellation_chan: IpcSender<LayoutMsg>,
     /// A shutdown channel so that layout can notify others when it's done.
     pub layout_shutdown_chan: IpcSender<()>,
     /// A shutdown channel so that layout can tell the content process to shut down when it's done.
@@ -310,8 +312,6 @@ pub struct InitialScriptState {
     pub control_port: IpcReceiver<ConstellationControlMsg>,
     /// A channel on which messages can be sent to the constellation from script.
     pub constellation_chan: IpcSender<ScriptMsg>,
-    /// A channel for the layout thread to send messages to the constellation.
-    pub layout_to_constellation_chan: IpcSender<LayoutMsg>,
     /// A channel for sending panics to the constellation.
     pub panic_chan: IpcSender<PanicMsg>,
     /// A channel to schedule timer events.