Auto merge of #21325 - gterzian:crossbeam_integration, r=SimonSapin,jdm

Replace mpsc with crossbeam-channel

Follow up on https://github.com/servo/servo/pull/19515

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Selecting over multiple channels in `std::sync::mpsc` is not stable and likely never will be:

https://github.com/rust-lang/rust/issues/27800#issuecomment-260136777
> It seems the only thing keeping `mpsc_select` around is Servo.

crossbeam-channel is designed specifically to replace `std::sync::mpsc` and fix many of its shortcomings:
https://github.com/stjepang/rfcs-crossbeam/blob/channel/text/2017-11-09-channel.md

This is to be landed together with https://github.com/servo/ipc-channel/pull/183.

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1 files changed, 1 insertions, 1 deletions

diff --git a/components/script/dom/workerglobalscope.rs b/components/script/dom/workerglobalscope.rs
index ac372c5fe98..da1f0ba7d36 100644
--- a/components/script/dom/workerglobalscope.rs
+++ b/components/script/dom/workerglobalscope.rs
@@ -36,12 +36,12 @@ use net_traits::request::{CredentialsMode, Destination, RequestInit as NetReques
 use script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort, get_reports, Runtime};
 use script_traits::{TimerEvent, TimerEventId};
 use script_traits::WorkerGlobalScopeInit;
+use servo_channel::Receiver;
 use servo_url::{MutableOrigin, ServoUrl};
 use std::default::Default;
 use std::rc::Rc;
 use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
-use std::sync::mpsc::Receiver;
 use task::TaskCanceller;
 use task_source::file_reading::FileReadingTaskSource;
 use task_source::networking::NetworkingTaskSource;