1 files changed, 1 insertions, 16 deletions
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index 5cdb84fba26..fd0d346414c 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -39,7 +39,6 @@ use canvas_traits::webgl::{WebGLSLVersion, WebGLSender, WebGLShaderId, WebGLText
 use canvas_traits::webgl::{WebGLVersion, WebGLVertexArrayId};
 use cssparser::RGBA;
 use devtools_traits::{CSSError, TimelineMarkerType, WorkerId};
-use dom::abstractworker::SharedRt;
 use dom::bindings::cell::DomRefCell;
 use dom::bindings::error::Error;
 use dom::bindings::refcounted::{Trusted, TrustedPromise};
@@ -77,7 +76,6 @@ use net_traits::response::{Response, ResponseBody};
 use net_traits::response::HttpsState;
 use net_traits::storage_thread::StorageType;
 use offscreen_gl_context::GLLimits;
-use parking_lot::RwLock;
 use profile_traits::mem::ProfilerChan as MemProfilerChan;
 use profile_traits::time::ProfilerChan as TimeProfilerChan;
 use script_layout_interface::OpaqueStyleAndLayoutData;
@@ -103,7 +101,7 @@ use std::hash::{BuildHasher, Hash};
 use std::ops::{Deref, DerefMut};
 use std::path::PathBuf;
 use std::rc::Rc;
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, AtomicUsize};
 use std::sync::mpsc::{Receiver, Sender};
 use std::time::{SystemTime, Instant};
@@ -397,7 +395,6 @@ unsafe_no_jsmanaged_fields!(Stylesheet);
 unsafe_no_jsmanaged_fields!(HttpsState);
 unsafe_no_jsmanaged_fields!(Request);
 unsafe_no_jsmanaged_fields!(RequestInit);
-unsafe_no_jsmanaged_fields!(SharedRt);
 unsafe_no_jsmanaged_fields!(StyleSharedRwLock);
 unsafe_no_jsmanaged_fields!(USVString);
 unsafe_no_jsmanaged_fields!(ReferrerPolicy);
@@ -594,12 +591,6 @@ unsafe impl<U> JSTraceable for TypedSize2D<f32, U> {
     }
 }
 
-unsafe impl JSTraceable for Mutex<Option<SharedRt>> {
-    unsafe fn trace(&self, _trc: *mut JSTracer) {
-        // Do nothing.
-    }
-}
-
 unsafe impl JSTraceable for StyleLocked<FontFaceRule> {
     unsafe fn trace(&self, _trc: *mut JSTracer) {
         // Do nothing.
@@ -666,12 +657,6 @@ unsafe impl JSTraceable for StyleLocked<PropertyDeclarationBlock> {
     }
 }
 
-unsafe impl JSTraceable for RwLock<SharedRt> {
-    unsafe fn trace(&self, _trc: *mut JSTracer) {
-        // Do nothing.
-    }
-}
-
 unsafe impl JSTraceable for StyleLocked<MediaList> {
     unsafe fn trace(&self, _trc: *mut JSTracer) {
         // Do nothing.