diff --git a/components/compositing/compositor.rs b/components/compositing/compositor.rs
index af84b49149d..7d2206c7ffc 100644
--- a/components/compositing/compositor.rs
+++ b/components/compositing/compositor.rs
@@ -610,7 +610,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
                 let _ = sender.send(());
             },
 
-            CompositorMsg::NewWebRenderFrameReady(recomposite_needed) => {
+            CompositorMsg::NewWebRenderFrameReady(_document_id, recomposite_needed) => {
                 self.pending_frames -= 1;
 
                 if recomposite_needed {
@@ -991,7 +991,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
                     );
                 }
             },
-            CompositorMsg::NewWebRenderFrameReady(_) => {
+            CompositorMsg::NewWebRenderFrameReady(..) => {
                 // Subtract from the number of pending frames, but do not do any compositing.
                 self.pending_frames -= 1;
             },
@@ -2378,12 +2378,12 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
         let mut found_recomposite_msg = false;
         while let Some(msg) = self.port.try_recv_compositor_msg() {
             match msg {
-                CompositorMsg::NewWebRenderFrameReady(_) if found_recomposite_msg => {
+                CompositorMsg::NewWebRenderFrameReady(..) if found_recomposite_msg => {
                     // Only take one of duplicate NewWebRendeFrameReady messages, but do subtract
                     // one frame from the pending frames.
                     self.pending_frames -= 1;
                 },
-                CompositorMsg::NewWebRenderFrameReady(_) => {
+                CompositorMsg::NewWebRenderFrameReady(..) => {
                     found_recomposite_msg = true;
                     compositor_messages.push(msg)
                 },
@@ -2437,7 +2437,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
     pub fn repaint_synchronously(&mut self) {
         while self.shutdown_state != ShutdownState::ShuttingDown {
             let msg = self.port.recv_compositor_msg();
-            let need_recomposite = matches!(msg, CompositorMsg::NewWebRenderFrameReady(_));
+            let need_recomposite = matches!(msg, CompositorMsg::NewWebRenderFrameReady(..));
             let keep_going = self.handle_browser_message(msg);
             if need_recomposite {
                 self.composite();
diff --git a/components/servo/lib.rs b/components/servo/lib.rs
index ff5a1e54efd..99947da8cad 100644
--- a/components/servo/lib.rs
+++ b/components/servo/lib.rs
@@ -206,13 +206,16 @@ impl webrender_api::RenderNotifier for RenderNotifier {
 
     fn new_frame_ready(
         &self,
-        _document_id: DocumentId,
+        document_id: DocumentId,
         _scrolled: bool,
         composite_needed: bool,
         _frame_publish_id: FramePublishId,
     ) {
         self.compositor_proxy
-            .send(CompositorMsg::NewWebRenderFrameReady(composite_needed));
+            .send(CompositorMsg::NewWebRenderFrameReady(
+                document_id,
+                composite_needed,
+            ));
     }
 }
 
diff --git a/components/shared/compositing/lib.rs b/components/shared/compositing/lib.rs
index 66d2199930e..e3c0c079037 100644
--- a/components/shared/compositing/lib.rs
+++ b/components/shared/compositing/lib.rs
@@ -22,6 +22,7 @@ use script_traits::{
 };
 use style_traits::CSSPixel;
 use webrender_api::units::{DeviceIntPoint, DeviceIntSize, DeviceRect};
+use webrender_api::DocumentId;
 use webrender_traits::{
     CanvasToCompositorMsg, FontToCompositorMsg, NetToCompositorMsg, ScriptToCompositorMsg,
 };
@@ -93,8 +94,9 @@ pub enum CompositorMsg {
     /// Set whether to use less resources by stopping animations.
     SetThrottled(PipelineId, bool),
     /// WebRender has produced a new frame. This message informs the compositor that
-    /// the frame is ready, so that it may trigger a recomposite.
-    NewWebRenderFrameReady(bool /* composite_needed */),
+    /// the frame is ready. It contains a bool to indicate if it needs to composite and the
+    /// `DocumentId` of the new frame.
+    NewWebRenderFrameReady(DocumentId, bool),
     /// A pipeline was shut down.
     // This message acts as a synchronization point between the constellation,
     // when it shuts down a pipeline, to the compositor; when the compositor