diff --git a/components/layout_thread/dom_wrapper.rs b/components/layout_thread/dom_wrapper.rs
index e778a56c1fe..2f502352d27 100644
--- a/components/layout_thread/dom_wrapper.rs
+++ b/components/layout_thread/dom_wrapper.rs
@@ -70,7 +70,6 @@ use servo_url::ServoUrl;
 use std::fmt;
 use std::fmt::Debug;
 use std::hash::{Hash, Hasher};
-use std::marker::PhantomData;
 use std::ptr::NonNull;
 use std::sync::atomic::Ordering;
 use std::sync::Arc as StdArc;
@@ -100,12 +99,9 @@ pub unsafe fn drop_style_and_layout_data(data: OpaqueStyleAndLayoutData) {
 }
 
 #[derive(Clone, Copy)]
-pub struct ServoLayoutNode<'a> {
+pub struct ServoLayoutNode<'dom> {
     /// The wrapped node.
-    node: LayoutDom<Node>,
-
-    /// Being chained to a PhantomData prevents `LayoutNode`s from escaping.
-    chain: PhantomData<&'a ()>,
+    node: LayoutDom<'dom, Node>,
 }
 
 impl<'ln> Debug for ServoLayoutNode<'ln> {
@@ -130,25 +126,14 @@ impl<'a> PartialEq for ServoLayoutNode<'a> {
 }
 
 impl<'ln> ServoLayoutNode<'ln> {
-    fn from_layout_js(n: LayoutDom<Node>) -> ServoLayoutNode<'ln> {
-        ServoLayoutNode {
-            node: n,
-            chain: PhantomData,
-        }
+    fn from_layout_js(n: LayoutDom<'ln, Node>) -> Self {
+        ServoLayoutNode { node: n }
     }
 
     pub unsafe fn new(address: &TrustedNodeAddress) -> Self {
         ServoLayoutNode::from_layout_js(LayoutDom::from_trusted_node_address(*address))
     }
 
-    /// Creates a new layout node with the same lifetime as this layout node.
-    pub unsafe fn new_with_this_lifetime(&self, node: &LayoutDom<Node>) -> ServoLayoutNode<'ln> {
-        ServoLayoutNode {
-            node: *node,
-            chain: self.chain,
-        }
-    }
-
     fn script_type_id(&self) -> NodeTypeId {
         unsafe { self.node.type_id_for_layout() }
     }
@@ -166,12 +151,9 @@ impl<'ln> NodeInfo for ServoLayoutNode<'ln> {
 }
 
 #[derive(Clone, Copy, PartialEq)]
-pub struct ServoShadowRoot<'a> {
+pub struct ServoShadowRoot<'dom> {
     /// The wrapped shadow root.
-    shadow_root: LayoutDom<ShadowRoot>,
-
-    /// Being chained to a PhantomData prevents `ShadowRoot`s from escaping.
-    chain: PhantomData<&'a ()>,
+    shadow_root: LayoutDom<'dom, ShadowRoot>,
 }
 
 impl<'lr> Debug for ServoShadowRoot<'lr> {
@@ -205,11 +187,8 @@ impl<'lr> TShadowRoot for ServoShadowRoot<'lr> {
 }
 
 impl<'lr> ServoShadowRoot<'lr> {
-    fn from_layout_js(shadow_root: LayoutDom<ShadowRoot>) -> ServoShadowRoot<'lr> {
-        ServoShadowRoot {
-            shadow_root,
-            chain: PhantomData,
-        }
+    fn from_layout_js(shadow_root: LayoutDom<'lr, ShadowRoot>) -> Self {
+        ServoShadowRoot { shadow_root }
     }
 
     pub unsafe fn flush_stylesheets(
@@ -232,40 +211,24 @@ impl<'ln> TNode for ServoLayoutNode<'ln> {
         unsafe {
             self.node
                 .composed_parent_node_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
+                .map(Self::from_layout_js)
         }
     }
 
     fn first_child(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .first_child_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.first_child_ref().map(Self::from_layout_js) }
     }
 
     fn last_child(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .last_child_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.last_child_ref().map(Self::from_layout_js) }
     }
 
     fn prev_sibling(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .prev_sibling_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.prev_sibling_ref().map(Self::from_layout_js) }
     }
 
     fn next_sibling(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .next_sibling_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.next_sibling_ref().map(Self::from_layout_js) }
     }
 
     fn owner_doc(&self) -> Self::ConcreteDocument {
@@ -311,7 +274,7 @@ impl<'ln> LayoutNode<'ln> for ServoLayoutNode<'ln> {
     type ConcreteThreadSafeLayoutNode = ServoThreadSafeLayoutNode<'ln>;
 
     fn to_threadsafe(&self) -> Self::ConcreteThreadSafeLayoutNode {
-        ServoThreadSafeLayoutNode::new(self)
+        ServoThreadSafeLayoutNode::new(*self)
     }
 
     fn type_id(&self) -> LayoutNodeType {
@@ -368,16 +331,15 @@ impl<'le> GetLayoutData<'le> for ServoThreadSafeLayoutElement<'le> {
 impl<'ln> ServoLayoutNode<'ln> {
     /// Returns the interior of this node as a `LayoutDom`. This is highly unsafe for layout to
     /// call and as such is marked `unsafe`.
-    pub unsafe fn get_jsmanaged(&self) -> &LayoutDom<Node> {
-        &self.node
+    pub unsafe fn get_jsmanaged(&self) -> LayoutDom<'ln, Node> {
+        self.node
     }
 }
 
 // A wrapper around documents that ensures ayout can only ever access safe properties.
 #[derive(Clone, Copy)]
-pub struct ServoLayoutDocument<'ld> {
-    document: LayoutDom<Document>,
-    chain: PhantomData<&'ld ()>,
+pub struct ServoLayoutDocument<'dom> {
+    document: LayoutDom<'dom, Document>,
 }
 
 impl<'ld> TDocument for ServoLayoutDocument<'ld> {
@@ -446,19 +408,15 @@ impl<'ld> ServoLayoutDocument<'ld> {
         }
     }
 
-    pub fn from_layout_js(doc: LayoutDom<Document>) -> ServoLayoutDocument<'ld> {
-        ServoLayoutDocument {
-            document: doc,
-            chain: PhantomData,
-        }
+    pub fn from_layout_js(doc: LayoutDom<'ld, Document>) -> Self {
+        ServoLayoutDocument { document: doc }
     }
 }
 
 /// A wrapper around elements that ensures layout can only ever access safe properties.
 #[derive(Clone, Copy)]
-pub struct ServoLayoutElement<'le> {
-    element: LayoutDom<Element>,
-    chain: PhantomData<&'le ()>,
+pub struct ServoLayoutElement<'dom> {
+    element: LayoutDom<'dom, Element>,
 }
 
 impl<'le> fmt::Debug for ServoLayoutElement<'le> {
@@ -739,11 +697,8 @@ impl<'le> Hash for ServoLayoutElement<'le> {
 impl<'le> Eq for ServoLayoutElement<'le> {}
 
 impl<'le> ServoLayoutElement<'le> {
-    fn from_layout_js(el: LayoutDom<Element>) -> ServoLayoutElement<'le> {
-        ServoLayoutElement {
-            element: el,
-            chain: PhantomData,
-        }
+    fn from_layout_js(el: LayoutDom<'le, Element>) -> Self {
+        ServoLayoutElement { element: el }
     }
 
     #[inline]
@@ -789,7 +744,7 @@ impl<'le> ServoLayoutElement<'le> {
     }
 }
 
-fn as_element<'le>(node: LayoutDom<Node>) -> Option<ServoLayoutElement<'le>> {
+fn as_element<'dom>(node: LayoutDom<'dom, Node>) -> Option<ServoLayoutElement<'dom>> {
     node.downcast().map(ServoLayoutElement::from_layout_js)
 }
 
@@ -1044,29 +999,20 @@ impl<'ln> DangerousThreadSafeLayoutNode<'ln> for ServoThreadSafeLayoutNode<'ln>
     unsafe fn dangerous_first_child(&self) -> Option<Self> {
         self.get_jsmanaged()
             .first_child_ref()
-            .map(|node| self.new_with_this_lifetime(&node))
+            .map(ServoLayoutNode::from_layout_js)
+            .map(Self::new)
     }
     unsafe fn dangerous_next_sibling(&self) -> Option<Self> {
         self.get_jsmanaged()
             .next_sibling_ref()
-            .map(|node| self.new_with_this_lifetime(&node))
+            .map(ServoLayoutNode::from_layout_js)
+            .map(Self::new)
     }
 }
 
 impl<'ln> ServoThreadSafeLayoutNode<'ln> {
-    /// Creates a new layout node with the same lifetime as this layout node.
-    pub unsafe fn new_with_this_lifetime(
-        &self,
-        node: &LayoutDom<Node>,
-    ) -> ServoThreadSafeLayoutNode<'ln> {
-        ServoThreadSafeLayoutNode {
-            node: self.node.new_with_this_lifetime(node),
-            pseudo: PseudoElementType::Normal,
-        }
-    }
-
     /// Creates a new `ServoThreadSafeLayoutNode` from the given `ServoLayoutNode`.
-    pub fn new<'a>(node: &ServoLayoutNode<'a>) -> ServoThreadSafeLayoutNode<'a> {
+    pub fn new(node: ServoLayoutNode<'ln>) -> Self {
         ServoThreadSafeLayoutNode {
             node: node.clone(),
             pseudo: PseudoElementType::Normal,
@@ -1075,7 +1021,7 @@ impl<'ln> ServoThreadSafeLayoutNode<'ln> {
 
     /// Returns the interior of this node as a `LayoutDom`. This is highly unsafe for layout to
     /// call and as such is marked `unsafe`.
-    unsafe fn get_jsmanaged(&self) -> &LayoutDom<Node> {
+    unsafe fn get_jsmanaged(&self) -> LayoutDom<'ln, Node> {
         self.node.get_jsmanaged()
     }
 }
diff --git a/components/layout_thread_2020/dom_wrapper.rs b/components/layout_thread_2020/dom_wrapper.rs
index 19960e03eb5..55277ea309c 100644
--- a/components/layout_thread_2020/dom_wrapper.rs
+++ b/components/layout_thread_2020/dom_wrapper.rs
@@ -70,7 +70,6 @@ use servo_url::ServoUrl;
 use std::fmt;
 use std::fmt::Debug;
 use std::hash::{Hash, Hasher};
-use std::marker::PhantomData;
 use std::ptr::NonNull;
 use std::sync::atomic::Ordering;
 use std::sync::Arc as StdArc;
@@ -100,12 +99,9 @@ pub unsafe fn drop_style_and_layout_data(data: OpaqueStyleAndLayoutData) {
 }
 
 #[derive(Clone, Copy)]
-pub struct ServoLayoutNode<'a> {
+pub struct ServoLayoutNode<'dom> {
     /// The wrapped node.
-    node: LayoutDom<Node>,
-
-    /// Being chained to a PhantomData prevents `LayoutNode`s from escaping.
-    chain: PhantomData<&'a ()>,
+    node: LayoutDom<'dom, Node>,
 }
 
 // Those are supposed to be sound, but they aren't because the entire system
@@ -137,25 +133,14 @@ impl<'a> PartialEq for ServoLayoutNode<'a> {
 }
 
 impl<'ln> ServoLayoutNode<'ln> {
-    fn from_layout_js(n: LayoutDom<Node>) -> ServoLayoutNode<'ln> {
-        ServoLayoutNode {
-            node: n,
-            chain: PhantomData,
-        }
+    fn from_layout_js(n: LayoutDom<'ln, Node>) -> Self {
+        ServoLayoutNode { node: n }
     }
 
     pub unsafe fn new(address: &TrustedNodeAddress) -> Self {
         ServoLayoutNode::from_layout_js(LayoutDom::from_trusted_node_address(*address))
     }
 
-    /// Creates a new layout node with the same lifetime as this layout node.
-    pub unsafe fn new_with_this_lifetime(&self, node: &LayoutDom<Node>) -> ServoLayoutNode<'ln> {
-        ServoLayoutNode {
-            node: *node,
-            chain: self.chain,
-        }
-    }
-
     fn script_type_id(&self) -> NodeTypeId {
         unsafe { self.node.type_id_for_layout() }
     }
@@ -173,12 +158,9 @@ impl<'ln> NodeInfo for ServoLayoutNode<'ln> {
 }
 
 #[derive(Clone, Copy, PartialEq)]
-pub struct ServoShadowRoot<'a> {
+pub struct ServoShadowRoot<'dom> {
     /// The wrapped shadow root.
-    shadow_root: LayoutDom<ShadowRoot>,
-
-    /// Being chained to a PhantomData prevents `ShadowRoot`s from escaping.
-    chain: PhantomData<&'a ()>,
+    shadow_root: LayoutDom<'dom, ShadowRoot>,
 }
 
 impl<'lr> Debug for ServoShadowRoot<'lr> {
@@ -212,11 +194,8 @@ impl<'lr> TShadowRoot for ServoShadowRoot<'lr> {
 }
 
 impl<'lr> ServoShadowRoot<'lr> {
-    fn from_layout_js(shadow_root: LayoutDom<ShadowRoot>) -> ServoShadowRoot<'lr> {
-        ServoShadowRoot {
-            shadow_root,
-            chain: PhantomData,
-        }
+    fn from_layout_js(shadow_root: LayoutDom<'lr, ShadowRoot>) -> Self {
+        ServoShadowRoot { shadow_root }
     }
 
     pub unsafe fn flush_stylesheets(
@@ -239,40 +218,24 @@ impl<'ln> TNode for ServoLayoutNode<'ln> {
         unsafe {
             self.node
                 .composed_parent_node_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
+                .map(Self::from_layout_js)
         }
     }
 
     fn first_child(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .first_child_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.first_child_ref().map(Self::from_layout_js) }
     }
 
     fn last_child(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .last_child_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.last_child_ref().map(Self::from_layout_js) }
     }
 
     fn prev_sibling(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .prev_sibling_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.prev_sibling_ref().map(Self::from_layout_js) }
     }
 
     fn next_sibling(&self) -> Option<Self> {
-        unsafe {
-            self.node
-                .next_sibling_ref()
-                .map(|node| self.new_with_this_lifetime(&node))
-        }
+        unsafe { self.node.next_sibling_ref().map(Self::from_layout_js) }
     }
 
     fn owner_doc(&self) -> Self::ConcreteDocument {
@@ -318,7 +281,7 @@ impl<'ln> LayoutNode<'ln> for ServoLayoutNode<'ln> {
     type ConcreteThreadSafeLayoutNode = ServoThreadSafeLayoutNode<'ln>;
 
     fn to_threadsafe(&self) -> Self::ConcreteThreadSafeLayoutNode {
-        ServoThreadSafeLayoutNode::new(self)
+        ServoThreadSafeLayoutNode::new(*self)
     }
 
     fn type_id(&self) -> LayoutNodeType {
@@ -375,16 +338,15 @@ impl<'le> GetLayoutData<'le> for ServoThreadSafeLayoutElement<'le> {
 impl<'ln> ServoLayoutNode<'ln> {
     /// Returns the interior of this node as a `LayoutDom`. This is highly unsafe for layout to
     /// call and as such is marked `unsafe`.
-    pub unsafe fn get_jsmanaged(&self) -> &LayoutDom<Node> {
-        &self.node
+    pub unsafe fn get_jsmanaged(&self) -> LayoutDom<'ln, Node> {
+        self.node
     }
 }
 
 // A wrapper around documents that ensures ayout can only ever access safe properties.
 #[derive(Clone, Copy)]
-pub struct ServoLayoutDocument<'ld> {
-    document: LayoutDom<Document>,
-    chain: PhantomData<&'ld ()>,
+pub struct ServoLayoutDocument<'dom> {
+    document: LayoutDom<'dom, Document>,
 }
 
 impl<'ld> TDocument for ServoLayoutDocument<'ld> {
@@ -453,19 +415,15 @@ impl<'ld> ServoLayoutDocument<'ld> {
         }
     }
 
-    pub fn from_layout_js(doc: LayoutDom<Document>) -> ServoLayoutDocument<'ld> {
-        ServoLayoutDocument {
-            document: doc,
-            chain: PhantomData,
-        }
+    pub fn from_layout_js(doc: LayoutDom<'ld, Document>) -> Self {
+        ServoLayoutDocument { document: doc }
     }
 }
 
 /// A wrapper around elements that ensures layout can only ever access safe properties.
 #[derive(Clone, Copy)]
-pub struct ServoLayoutElement<'le> {
-    element: LayoutDom<Element>,
-    chain: PhantomData<&'le ()>,
+pub struct ServoLayoutElement<'dom> {
+    element: LayoutDom<'dom, Element>,
 }
 
 impl<'le> fmt::Debug for ServoLayoutElement<'le> {
@@ -746,11 +704,8 @@ impl<'le> Hash for ServoLayoutElement<'le> {
 impl<'le> Eq for ServoLayoutElement<'le> {}
 
 impl<'le> ServoLayoutElement<'le> {
-    fn from_layout_js(el: LayoutDom<Element>) -> ServoLayoutElement<'le> {
-        ServoLayoutElement {
-            element: el,
-            chain: PhantomData,
-        }
+    fn from_layout_js(el: LayoutDom<'le, Element>) -> Self {
+        ServoLayoutElement { element: el }
     }
 
     #[inline]
@@ -796,7 +751,7 @@ impl<'le> ServoLayoutElement<'le> {
     }
 }
 
-fn as_element<'le>(node: LayoutDom<Node>) -> Option<ServoLayoutElement<'le>> {
+fn as_element<'dom>(node: LayoutDom<'dom, Node>) -> Option<ServoLayoutElement<'dom>> {
     node.downcast().map(ServoLayoutElement::from_layout_js)
 }
 
@@ -1051,29 +1006,20 @@ impl<'ln> DangerousThreadSafeLayoutNode<'ln> for ServoThreadSafeLayoutNode<'ln>
     unsafe fn dangerous_first_child(&self) -> Option<Self> {
         self.get_jsmanaged()
             .first_child_ref()
-            .map(|node| self.new_with_this_lifetime(&node))
+            .map(ServoLayoutNode::from_layout_js)
+            .map(Self::new)
     }
     unsafe fn dangerous_next_sibling(&self) -> Option<Self> {
         self.get_jsmanaged()
             .next_sibling_ref()
-            .map(|node| self.new_with_this_lifetime(&node))
+            .map(ServoLayoutNode::from_layout_js)
+            .map(Self::new)
     }
 }
 
 impl<'ln> ServoThreadSafeLayoutNode<'ln> {
-    /// Creates a new layout node with the same lifetime as this layout node.
-    pub unsafe fn new_with_this_lifetime(
-        &self,
-        node: &LayoutDom<Node>,
-    ) -> ServoThreadSafeLayoutNode<'ln> {
-        ServoThreadSafeLayoutNode {
-            node: self.node.new_with_this_lifetime(node),
-            pseudo: PseudoElementType::Normal,
-        }
-    }
-
     /// Creates a new `ServoThreadSafeLayoutNode` from the given `ServoLayoutNode`.
-    pub fn new<'a>(node: &ServoLayoutNode<'a>) -> ServoThreadSafeLayoutNode<'a> {
+    pub fn new(node: ServoLayoutNode<'ln>) -> Self {
         ServoThreadSafeLayoutNode {
             node: node.clone(),
             pseudo: PseudoElementType::Normal,
@@ -1082,7 +1028,7 @@ impl<'ln> ServoThreadSafeLayoutNode<'ln> {
 
     /// Returns the interior of this node as a `LayoutDom`. This is highly unsafe for layout to
     /// call and as such is marked `unsafe`.
-    unsafe fn get_jsmanaged(&self) -> &LayoutDom<Node> {
+    unsafe fn get_jsmanaged(&self) -> LayoutDom<'ln, Node> {
         self.node.get_jsmanaged()
     }
 }
diff --git a/components/script/dom/attr.rs b/components/script/dom/attr.rs
index 259a0d560c2..7dcc76e6caf 100644
--- a/components/script/dom/attr.rs
+++ b/components/script/dom/attr.rs
@@ -241,7 +241,7 @@ pub trait AttrHelpersForLayout {
 }
 
 #[allow(unsafe_code)]
-impl AttrHelpersForLayout for LayoutDom<Attr> {
+impl AttrHelpersForLayout for LayoutDom<'_, Attr> {
     #[inline]
     unsafe fn value_forever(&self) -> &'static AttrValue {
         // This transmute is used to cheat the lifetime restriction.
diff --git a/components/script/dom/bindings/root.rs b/components/script/dom/bindings/root.rs
index 0ba69687dba..b1739ac27c3 100644
--- a/components/script/dom/bindings/root.rs
+++ b/components/script/dom/bindings/root.rs
@@ -331,6 +331,7 @@ impl<T> Dom<T> {
         debug_assert!(thread_state::get().is_layout());
         LayoutDom {
             ptr: self.ptr.clone(),
+            marker: PhantomData,
         }
     }
 }
@@ -413,13 +414,17 @@ where
 /// An unrooted reference to a DOM object for use in layout. `Layout*Helpers`
 /// traits must be implemented on this.
 #[unrooted_must_root_lint::allow_unrooted_interior]
-pub struct LayoutDom<T> {
+pub struct LayoutDom<'dom, T> {
     ptr: ptr::NonNull<T>,
+    marker: PhantomData<&'dom T>,
 }
 
-impl<T: Castable> LayoutDom<T> {
+impl<'dom, T> LayoutDom<'dom, T>
+where
+    T: Castable,
+{
     /// Cast a DOM object root upwards to one of the interfaces it derives from.
-    pub fn upcast<U>(&self) -> LayoutDom<U>
+    pub fn upcast<U>(&self) -> LayoutDom<'dom, U>
     where
         U: Castable,
         T: DerivedFrom<U>,
@@ -428,11 +433,12 @@ impl<T: Castable> LayoutDom<T> {
         let ptr: *mut T = self.ptr.as_ptr();
         LayoutDom {
             ptr: unsafe { ptr::NonNull::new_unchecked(ptr as *mut U) },
+            marker: PhantomData,
         }
     }
 
     /// Cast a DOM object downwards to one of the interfaces it might implement.
-    pub fn downcast<U>(&self) -> Option<LayoutDom<U>>
+    pub fn downcast<U>(&self) -> Option<LayoutDom<'dom, U>>
     where
         U: DerivedFrom<T>,
     {
@@ -442,6 +448,7 @@ impl<T: Castable> LayoutDom<T> {
                 let ptr: *mut T = self.ptr.as_ptr();
                 Some(LayoutDom {
                     ptr: ptr::NonNull::new_unchecked(ptr as *mut U),
+                    marker: PhantomData,
                 })
             } else {
                 None
@@ -450,7 +457,10 @@ impl<T: Castable> LayoutDom<T> {
     }
 }
 
-impl<T: DomObject> LayoutDom<T> {
+impl<T> LayoutDom<'_, T>
+where
+    T: DomObject,
+{
     /// Get the reflector.
     pub unsafe fn get_jsobject(&self) -> *mut JSObject {
         debug_assert!(thread_state::get().is_layout());
@@ -458,7 +468,7 @@ impl<T: DomObject> LayoutDom<T> {
     }
 }
 
-impl<T> Copy for LayoutDom<T> {}
+impl<T> Copy for LayoutDom<'_, T> {}
 
 impl<T> PartialEq for Dom<T> {
     fn eq(&self, other: &Dom<T>) -> bool {
@@ -474,13 +484,13 @@ impl<'a, T: DomObject> PartialEq<&'a T> for Dom<T> {
 
 impl<T> Eq for Dom<T> {}
 
-impl<T> PartialEq for LayoutDom<T> {
-    fn eq(&self, other: &LayoutDom<T>) -> bool {
+impl<T> PartialEq for LayoutDom<'_, T> {
+    fn eq(&self, other: &Self) -> bool {
         self.ptr.as_ptr() == other.ptr.as_ptr()
     }
 }
 
-impl<T> Eq for LayoutDom<T> {}
+impl<T> Eq for LayoutDom<'_, T> {}
 
 impl<T> Hash for Dom<T> {
     fn hash<H: Hasher>(&self, state: &mut H) {
@@ -488,7 +498,7 @@ impl<T> Hash for Dom<T> {
     }
 }
 
-impl<T> Hash for LayoutDom<T> {
+impl<T> Hash for LayoutDom<'_, T> {
     fn hash<H: Hasher>(&self, state: &mut H) {
         self.ptr.as_ptr().hash(state)
     }
@@ -497,7 +507,7 @@ impl<T> Hash for LayoutDom<T> {
 impl<T> Clone for Dom<T> {
     #[inline]
     #[allow(unrooted_must_root)]
-    fn clone(&self) -> Dom<T> {
+    fn clone(&self) -> Self {
         debug_assert!(thread_state::get().is_script());
         Dom {
             ptr: self.ptr.clone(),
@@ -505,24 +515,26 @@ impl<T> Clone for Dom<T> {
     }
 }
 
-impl<T> Clone for LayoutDom<T> {
+impl<T> Clone for LayoutDom<'_, T> {
     #[inline]
-    fn clone(&self) -> LayoutDom<T> {
+    fn clone(&self) -> Self {
         debug_assert!(thread_state::get().is_layout());
         LayoutDom {
             ptr: self.ptr.clone(),
+            marker: PhantomData,
         }
     }
 }
 
-impl LayoutDom<Node> {
+impl LayoutDom<'_, Node> {
     /// Create a new JS-owned value wrapped from an address known to be a
     /// `Node` pointer.
-    pub unsafe fn from_trusted_node_address(inner: TrustedNodeAddress) -> LayoutDom<Node> {
+    pub unsafe fn from_trusted_node_address(inner: TrustedNodeAddress) -> Self {
         debug_assert!(thread_state::get().is_layout());
         let TrustedNodeAddress(addr) = inner;
         LayoutDom {
             ptr: ptr::NonNull::new_unchecked(addr as *const Node as *mut Node),
+            marker: PhantomData,
         }
     }
 }
@@ -624,7 +636,7 @@ impl<T: DomObject> MutNullableDom<T> {
     #[allow(unrooted_must_root)]
     pub unsafe fn get_inner_as_layout(&self) -> Option<LayoutDom<T>> {
         debug_assert!(thread_state::get().is_layout());
-        ptr::read(self.ptr.get()).map(|js| js.to_layout())
+        (*self.ptr.get()).as_ref().map(|js| js.to_layout())
     }
 
     /// Get a rooted value out of this object
@@ -732,7 +744,10 @@ unsafe impl<T: DomObject> JSTraceable for DomOnceCell<T> {
     }
 }
 
-impl<T: DomObject> LayoutDom<T> {
+impl<'dom, T> LayoutDom<'dom, T>
+where
+    T: 'dom + DomObject,
+{
     /// Returns an unsafe pointer to the interior of this JS object. This is
     /// the only method that be safely accessed from layout. (The fact that
     /// this is unsafe is what necessitates the layout wrappers.)
diff --git a/components/script/dom/canvasrenderingcontext2d.rs b/components/script/dom/canvasrenderingcontext2d.rs
index fc34cab49eb..d6c01c6a145 100644
--- a/components/script/dom/canvasrenderingcontext2d.rs
+++ b/components/script/dom/canvasrenderingcontext2d.rs
@@ -157,7 +157,7 @@ pub trait LayoutCanvasRenderingContext2DHelpers {
     unsafe fn get_canvas_id(&self) -> CanvasId;
 }
 
-impl LayoutCanvasRenderingContext2DHelpers for LayoutDom<CanvasRenderingContext2D> {
+impl LayoutCanvasRenderingContext2DHelpers for LayoutDom<'_, CanvasRenderingContext2D> {
     #[allow(unsafe_code)]
     unsafe fn get_ipc_renderer(&self) -> IpcSender<CanvasMsg> {
         (*self.unsafe_get())
diff --git a/components/script/dom/characterdata.rs b/components/script/dom/characterdata.rs
index 6baa6a855d9..81456cfb60b 100644
--- a/components/script/dom/characterdata.rs
+++ b/components/script/dom/characterdata.rs
@@ -286,7 +286,7 @@ pub trait LayoutCharacterDataHelpers {
 }
 
 #[allow(unsafe_code)]
-impl LayoutCharacterDataHelpers for LayoutDom<CharacterData> {
+impl LayoutCharacterDataHelpers for LayoutDom<'_, CharacterData> {
     #[inline]
     unsafe fn data_for_layout(&self) -> &str {
         &(*self.unsafe_get()).data.borrow_for_layout()
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index 18d6e0cbd59..f119429e01f 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -2617,7 +2617,7 @@ pub trait LayoutDocumentHelpers {
 }
 
 #[allow(unsafe_code)]
-impl LayoutDocumentHelpers for LayoutDom<Document> {
+impl LayoutDocumentHelpers for LayoutDom<'_, Document> {
     #[inline]
     unsafe fn is_html_document_for_layout(&self) -> bool {
         (*self.unsafe_get()).is_html_document
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 9f20d31dbc6..70000fd95f7 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -567,11 +567,11 @@ pub trait RawLayoutElementHelpers {
 
 #[inline]
 #[allow(unsafe_code)]
-pub unsafe fn get_attr_for_layout<'a>(
-    elem: &'a Element,
+pub unsafe fn get_attr_for_layout<'dom>(
+    elem: &'dom Element,
     namespace: &Namespace,
     name: &LocalName,
-) -> Option<LayoutDom<Attr>> {
+) -> Option<LayoutDom<'dom, Attr>> {
     // cast to point to T in RefCell<T> directly
     let attrs = elem.attrs.borrow_for_layout();
     attrs
@@ -620,7 +620,7 @@ impl RawLayoutElementHelpers for Element {
     }
 }
 
-pub trait LayoutElementHelpers {
+pub trait LayoutElementHelpers<'dom> {
     #[allow(unsafe_code)]
     unsafe fn has_class_for_layout(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool;
     #[allow(unsafe_code)]
@@ -646,10 +646,10 @@ pub trait LayoutElementHelpers {
     fn has_selector_flags(&self, flags: ElementSelectorFlags) -> bool;
     /// The shadow root this element is a host of.
     #[allow(unsafe_code)]
-    unsafe fn get_shadow_root_for_layout(&self) -> Option<LayoutDom<ShadowRoot>>;
+    unsafe fn get_shadow_root_for_layout(&self) -> Option<LayoutDom<'dom, ShadowRoot>>;
 }
 
-impl LayoutElementHelpers for LayoutDom<Element> {
+impl<'dom> LayoutElementHelpers<'dom> for LayoutDom<'dom, Element> {
     #[allow(unsafe_code)]
     #[inline]
     unsafe fn has_class_for_layout(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
@@ -1095,7 +1095,7 @@ impl LayoutElementHelpers for LayoutDom<Element> {
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn get_shadow_root_for_layout(&self) -> Option<LayoutDom<ShadowRoot>> {
+    unsafe fn get_shadow_root_for_layout(&self) -> Option<LayoutDom<'dom, ShadowRoot>> {
         (*self.unsafe_get())
             .rare_data_for_layout()
             .as_ref()?
diff --git a/components/script/dom/htmlbodyelement.rs b/components/script/dom/htmlbodyelement.rs
index cc2e20e68a9..0f3a0d51e15 100644
--- a/components/script/dom/htmlbodyelement.rs
+++ b/components/script/dom/htmlbodyelement.rs
@@ -99,7 +99,7 @@ pub trait HTMLBodyElementLayoutHelpers {
     fn get_background(&self) -> Option<ServoUrl>;
 }
 
-impl HTMLBodyElementLayoutHelpers for LayoutDom<HTMLBodyElement> {
+impl HTMLBodyElementLayoutHelpers for LayoutDom<'_, HTMLBodyElement> {
     #[allow(unsafe_code)]
     fn get_background_color(&self) -> Option<RGBA> {
         unsafe {
diff --git a/components/script/dom/htmlcanvaselement.rs b/components/script/dom/htmlcanvaselement.rs
index 21a07120b77..208ee2d2bfa 100644
--- a/components/script/dom/htmlcanvaselement.rs
+++ b/components/script/dom/htmlcanvaselement.rs
@@ -120,7 +120,7 @@ pub trait LayoutHTMLCanvasElementHelpers {
     fn get_canvas_id_for_layout(&self) -> CanvasId;
 }
 
-impl LayoutHTMLCanvasElementHelpers for LayoutDom<HTMLCanvasElement> {
+impl LayoutHTMLCanvasElementHelpers for LayoutDom<'_, HTMLCanvasElement> {
     #[allow(unsafe_code)]
     fn data(&self) -> HTMLCanvasData {
         unsafe {
diff --git a/components/script/dom/htmlfontelement.rs b/components/script/dom/htmlfontelement.rs
index fe7b52c1100..cb130530703 100644
--- a/components/script/dom/htmlfontelement.rs
+++ b/components/script/dom/htmlfontelement.rs
@@ -106,7 +106,7 @@ pub trait HTMLFontElementLayoutHelpers {
     fn get_size(&self) -> Option<u32>;
 }
 
-impl HTMLFontElementLayoutHelpers for LayoutDom<HTMLFontElement> {
+impl HTMLFontElementLayoutHelpers for LayoutDom<'_, HTMLFontElement> {
     #[allow(unsafe_code)]
     fn get_color(&self) -> Option<RGBA> {
         unsafe {
diff --git a/components/script/dom/htmlhrelement.rs b/components/script/dom/htmlhrelement.rs
index 557e4fbcc19..a53d30e700b 100644
--- a/components/script/dom/htmlhrelement.rs
+++ b/components/script/dom/htmlhrelement.rs
@@ -70,7 +70,7 @@ pub trait HTMLHRLayoutHelpers {
     fn get_width(&self) -> LengthOrPercentageOrAuto;
 }
 
-impl HTMLHRLayoutHelpers for LayoutDom<HTMLHRElement> {
+impl HTMLHRLayoutHelpers for LayoutDom<'_, HTMLHRElement> {
     #[allow(unsafe_code)]
     fn get_color(&self) -> Option<RGBA> {
         unsafe {
diff --git a/components/script/dom/htmliframeelement.rs b/components/script/dom/htmliframeelement.rs
index 17e38aec157..16c5c1433b6 100644
--- a/components/script/dom/htmliframeelement.rs
+++ b/components/script/dom/htmliframeelement.rs
@@ -486,7 +486,7 @@ pub trait HTMLIFrameElementLayoutMethods {
     fn get_height(&self) -> LengthOrPercentageOrAuto;
 }
 
-impl HTMLIFrameElementLayoutMethods for LayoutDom<HTMLIFrameElement> {
+impl HTMLIFrameElementLayoutMethods for LayoutDom<'_, HTMLIFrameElement> {
     #[inline]
     #[allow(unsafe_code)]
     fn pipeline_id(&self) -> Option<PipelineId> {
diff --git a/components/script/dom/htmlimageelement.rs b/components/script/dom/htmlimageelement.rs
index 3b4052e6b73..386a77041ac 100644
--- a/components/script/dom/htmlimageelement.rs
+++ b/components/script/dom/htmlimageelement.rs
@@ -1382,7 +1382,7 @@ pub trait LayoutHTMLImageElementHelpers {
     fn get_height(&self) -> LengthOrPercentageOrAuto;
 }
 
-impl LayoutHTMLImageElementHelpers for LayoutDom<HTMLImageElement> {
+impl LayoutHTMLImageElementHelpers for LayoutDom<'_, HTMLImageElement> {
     #[allow(unsafe_code)]
     unsafe fn image(&self) -> Option<Arc<Image>> {
         (*self.unsafe_get())
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index 083e977a566..05eca7b35eb 100755
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -726,11 +726,14 @@ unsafe fn get_raw_textinput_value(input: LayoutDom<HTMLInputElement>) -> DOMStri
         .get_content()
 }
 
-impl LayoutHTMLInputElementHelpers for LayoutDom<HTMLInputElement> {
+impl LayoutHTMLInputElementHelpers for LayoutDom<'_, HTMLInputElement> {
     #[allow(unsafe_code)]
     unsafe fn value_for_layout(self) -> String {
         #[allow(unsafe_code)]
-        unsafe fn get_raw_attr_value(input: LayoutDom<HTMLInputElement>, default: &str) -> String {
+        unsafe fn get_raw_attr_value(
+            input: LayoutDom<'_, HTMLInputElement>,
+            default: &str,
+        ) -> String {
             let elem = input.upcast::<Element>();
             let value = (*elem.unsafe_get())
                 .get_attr_val_for_layout(&ns!(), &local_name!("value"))
diff --git a/components/script/dom/htmlmediaelement.rs b/components/script/dom/htmlmediaelement.rs
index f8c686d34f2..f4833de4e51 100644
--- a/components/script/dom/htmlmediaelement.rs
+++ b/components/script/dom/htmlmediaelement.rs
@@ -2447,7 +2447,7 @@ pub trait LayoutHTMLMediaElementHelpers {
     fn data(&self) -> HTMLMediaData;
 }
 
-impl LayoutHTMLMediaElementHelpers for LayoutDom<HTMLMediaElement> {
+impl LayoutHTMLMediaElementHelpers for LayoutDom<'_, HTMLMediaElement> {
     #[allow(unsafe_code)]
     fn data(&self) -> HTMLMediaData {
         let media = unsafe { &*self.unsafe_get() };
diff --git a/components/script/dom/htmltablecellelement.rs b/components/script/dom/htmltablecellelement.rs
index 95ccde45d81..aa3db5733bc 100644
--- a/components/script/dom/htmltablecellelement.rs
+++ b/components/script/dom/htmltablecellelement.rs
@@ -105,7 +105,7 @@ pub trait HTMLTableCellElementLayoutHelpers {
 }
 
 #[allow(unsafe_code)]
-impl HTMLTableCellElementLayoutHelpers for LayoutDom<HTMLTableCellElement> {
+impl HTMLTableCellElementLayoutHelpers for LayoutDom<'_, HTMLTableCellElement> {
     fn get_background_color(&self) -> Option<RGBA> {
         unsafe {
             (&*self.upcast::<Element>().unsafe_get())
diff --git a/components/script/dom/htmltableelement.rs b/components/script/dom/htmltableelement.rs
index d25b81cb13f..5bdb7f75281 100644
--- a/components/script/dom/htmltableelement.rs
+++ b/components/script/dom/htmltableelement.rs
@@ -412,7 +412,7 @@ pub trait HTMLTableElementLayoutHelpers {
     fn get_width(&self) -> LengthOrPercentageOrAuto;
 }
 
-impl HTMLTableElementLayoutHelpers for LayoutDom<HTMLTableElement> {
+impl HTMLTableElementLayoutHelpers for LayoutDom<'_, HTMLTableElement> {
     #[allow(unsafe_code)]
     fn get_background_color(&self) -> Option<RGBA> {
         unsafe {
diff --git a/components/script/dom/htmltablerowelement.rs b/components/script/dom/htmltablerowelement.rs
index a99ecea162e..9a6b5b875cc 100644
--- a/components/script/dom/htmltablerowelement.rs
+++ b/components/script/dom/htmltablerowelement.rs
@@ -150,7 +150,7 @@ pub trait HTMLTableRowElementLayoutHelpers {
 }
 
 #[allow(unsafe_code)]
-impl HTMLTableRowElementLayoutHelpers for LayoutDom<HTMLTableRowElement> {
+impl HTMLTableRowElementLayoutHelpers for LayoutDom<'_, HTMLTableRowElement> {
     fn get_background_color(&self) -> Option<RGBA> {
         unsafe {
             (&*self.upcast::<Element>().unsafe_get())
diff --git a/components/script/dom/htmltablesectionelement.rs b/components/script/dom/htmltablesectionelement.rs
index 1410e0ee1a4..c680da2ad23 100644
--- a/components/script/dom/htmltablesectionelement.rs
+++ b/components/script/dom/htmltablesectionelement.rs
@@ -88,7 +88,7 @@ pub trait HTMLTableSectionElementLayoutHelpers {
 }
 
 #[allow(unsafe_code)]
-impl HTMLTableSectionElementLayoutHelpers for LayoutDom<HTMLTableSectionElement> {
+impl HTMLTableSectionElementLayoutHelpers for LayoutDom<'_, HTMLTableSectionElement> {
     fn get_background_color(&self) -> Option<RGBA> {
         unsafe {
             (&*self.upcast::<Element>().unsafe_get())
diff --git a/components/script/dom/htmltextareaelement.rs b/components/script/dom/htmltextareaelement.rs
index 0708b553442..8ee42bc2c86 100755
--- a/components/script/dom/htmltextareaelement.rs
+++ b/components/script/dom/htmltextareaelement.rs
@@ -66,7 +66,7 @@ pub trait LayoutHTMLTextAreaElementHelpers {
     fn get_rows(self) -> u32;
 }
 
-impl LayoutHTMLTextAreaElementHelpers for LayoutDom<HTMLTextAreaElement> {
+impl LayoutHTMLTextAreaElementHelpers for LayoutDom<'_, HTMLTextAreaElement> {
     #[allow(unrooted_must_root)]
     #[allow(unsafe_code)]
     unsafe fn value_for_layout(self) -> String {
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 2d6b4b581f6..08fe3282be1 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -1304,17 +1304,17 @@ pub unsafe fn from_untrusted_node_address(
 }
 
 #[allow(unsafe_code)]
-pub trait LayoutNodeHelpers {
+pub trait LayoutNodeHelpers<'dom> {
     unsafe fn type_id_for_layout(&self) -> NodeTypeId;
 
-    unsafe fn composed_parent_node_ref(&self) -> Option<LayoutDom<Node>>;
-    unsafe fn first_child_ref(&self) -> Option<LayoutDom<Node>>;
-    unsafe fn last_child_ref(&self) -> Option<LayoutDom<Node>>;
-    unsafe fn prev_sibling_ref(&self) -> Option<LayoutDom<Node>>;
-    unsafe fn next_sibling_ref(&self) -> Option<LayoutDom<Node>>;
+    unsafe fn composed_parent_node_ref(&self) -> Option<LayoutDom<'dom, Node>>;
+    unsafe fn first_child_ref(&self) -> Option<LayoutDom<'dom, Node>>;
+    unsafe fn last_child_ref(&self) -> Option<LayoutDom<'dom, Node>>;
+    unsafe fn prev_sibling_ref(&self) -> Option<LayoutDom<'dom, Node>>;
+    unsafe fn next_sibling_ref(&self) -> Option<LayoutDom<'dom, Node>>;
 
-    unsafe fn owner_doc_for_layout(&self) -> LayoutDom<Document>;
-    unsafe fn containing_shadow_root_for_layout(&self) -> Option<LayoutDom<ShadowRoot>>;
+    unsafe fn owner_doc_for_layout(&self) -> LayoutDom<'dom, Document>;
+    unsafe fn containing_shadow_root_for_layout(&self) -> Option<LayoutDom<'dom, ShadowRoot>>;
 
     unsafe fn is_element_for_layout(&self) -> bool;
     unsafe fn get_flag(&self, flag: NodeFlags) -> bool;
@@ -1339,7 +1339,7 @@ pub trait LayoutNodeHelpers {
     fn opaque(&self) -> OpaqueNode;
 }
 
-impl LayoutNodeHelpers for LayoutDom<Node> {
+impl<'dom> LayoutNodeHelpers<'dom> for LayoutDom<'dom, Node> {
     #[inline]
     #[allow(unsafe_code)]
     unsafe fn type_id_for_layout(&self) -> NodeTypeId {
@@ -1354,7 +1354,7 @@ impl LayoutNodeHelpers for LayoutDom<Node> {
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn composed_parent_node_ref(&self) -> Option<LayoutDom<Node>> {
+    unsafe fn composed_parent_node_ref(&self) -> Option<LayoutDom<'dom, Node>> {
         let parent = (*self.unsafe_get()).parent_node.get_inner_as_layout();
         if let Some(ref parent) = parent {
             if let Some(shadow_root) = parent.downcast::<ShadowRoot>() {
@@ -1366,31 +1366,31 @@ impl LayoutNodeHelpers for LayoutDom<Node> {
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn first_child_ref(&self) -> Option<LayoutDom<Node>> {
+    unsafe fn first_child_ref(&self) -> Option<LayoutDom<'dom, Node>> {
         (*self.unsafe_get()).first_child.get_inner_as_layout()
     }
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn last_child_ref(&self) -> Option<LayoutDom<Node>> {
+    unsafe fn last_child_ref(&self) -> Option<LayoutDom<'dom, Node>> {
         (*self.unsafe_get()).last_child.get_inner_as_layout()
     }
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn prev_sibling_ref(&self) -> Option<LayoutDom<Node>> {
+    unsafe fn prev_sibling_ref(&self) -> Option<LayoutDom<'dom, Node>> {
         (*self.unsafe_get()).prev_sibling.get_inner_as_layout()
     }
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn next_sibling_ref(&self) -> Option<LayoutDom<Node>> {
+    unsafe fn next_sibling_ref(&self) -> Option<LayoutDom<'dom, Node>> {
         (*self.unsafe_get()).next_sibling.get_inner_as_layout()
     }
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn owner_doc_for_layout(&self) -> LayoutDom<Document> {
+    unsafe fn owner_doc_for_layout(&self) -> LayoutDom<'dom, Document> {
         (*self.unsafe_get())
             .owner_doc
             .get_inner_as_layout()
@@ -1399,7 +1399,7 @@ impl LayoutNodeHelpers for LayoutDom<Node> {
 
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn containing_shadow_root_for_layout(&self) -> Option<LayoutDom<ShadowRoot>> {
+    unsafe fn containing_shadow_root_for_layout(&self) -> Option<LayoutDom<'dom, ShadowRoot>> {
         (*self.unsafe_get())
             .rare_data_for_layout()
             .as_ref()?
diff --git a/components/script/dom/shadowroot.rs b/components/script/dom/shadowroot.rs
index 2324a685042..71db09f4671 100644
--- a/components/script/dom/shadowroot.rs
+++ b/components/script/dom/shadowroot.rs
@@ -239,8 +239,8 @@ impl ShadowRootMethods for ShadowRoot {
 }
 
 #[allow(unsafe_code)]
-pub trait LayoutShadowRootHelpers {
-    unsafe fn get_host_for_layout(&self) -> LayoutDom<Element>;
+pub trait LayoutShadowRootHelpers<'dom> {
+    unsafe fn get_host_for_layout(&self) -> LayoutDom<'dom, Element>;
     unsafe fn get_style_data_for_layout<'a, E: TElement>(
         &self,
     ) -> &'a AuthorStyles<StyleSheetInDocument>;
@@ -252,10 +252,10 @@ pub trait LayoutShadowRootHelpers {
     );
 }
 
-impl LayoutShadowRootHelpers for LayoutDom<ShadowRoot> {
+impl<'dom> LayoutShadowRootHelpers<'dom> for LayoutDom<'dom, ShadowRoot> {
     #[inline]
     #[allow(unsafe_code)]
-    unsafe fn get_host_for_layout(&self) -> LayoutDom<Element> {
+    unsafe fn get_host_for_layout(&self) -> LayoutDom<'dom, Element> {
         (*self.unsafe_get())
             .host
             .get_inner_as_layout()
diff --git a/components/script/dom/svgsvgelement.rs b/components/script/dom/svgsvgelement.rs
index 8671f8a9027..8c8c1dbb834 100644
--- a/components/script/dom/svgsvgelement.rs
+++ b/components/script/dom/svgsvgelement.rs
@@ -52,7 +52,7 @@ pub trait LayoutSVGSVGElementHelpers {
     fn data(&self) -> SVGSVGData;
 }
 
-impl LayoutSVGSVGElementHelpers for LayoutDom<SVGSVGElement> {
+impl LayoutSVGSVGElementHelpers for LayoutDom<'_, SVGSVGElement> {
     #[allow(unsafe_code, non_snake_case)]
     fn data(&self) -> SVGSVGData {
         unsafe {
diff --git a/components/script/dom/webgl2renderingcontext.rs b/components/script/dom/webgl2renderingcontext.rs
index fef9b062123..80f8d1bc0f5 100644
--- a/components/script/dom/webgl2renderingcontext.rs
+++ b/components/script/dom/webgl2renderingcontext.rs
@@ -3884,7 +3884,7 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
     }
 }
 
-impl LayoutCanvasWebGLRenderingContextHelpers for LayoutDom<WebGL2RenderingContext> {
+impl LayoutCanvasWebGLRenderingContextHelpers for LayoutDom<'_, WebGL2RenderingContext> {
     #[allow(unsafe_code)]
     unsafe fn canvas_data_source(&self) -> HTMLCanvasDataSource {
         let this = &*self.unsafe_get();
diff --git a/components/script/dom/webglrenderingcontext.rs b/components/script/dom/webglrenderingcontext.rs
index dab9cf6dcf1..45d2f145e41 100644
--- a/components/script/dom/webglrenderingcontext.rs
+++ b/components/script/dom/webglrenderingcontext.rs
@@ -4450,7 +4450,7 @@ pub trait LayoutCanvasWebGLRenderingContextHelpers {
     unsafe fn canvas_data_source(&self) -> HTMLCanvasDataSource;
 }
 
-impl LayoutCanvasWebGLRenderingContextHelpers for LayoutDom<WebGLRenderingContext> {
+impl LayoutCanvasWebGLRenderingContextHelpers for LayoutDom<'_, WebGLRenderingContext> {
     #[allow(unsafe_code)]
     unsafe fn canvas_data_source(&self) -> HTMLCanvasDataSource {
         (*self.unsafe_get()).layout_handle()