constellation: Rename messages sent to the `Constellation` (#36341)

Messages that are sent to the `Constellation` have pretty ambiguous
names.
This change does two renames:

- `ConstellationMsg` → `EmbedderToConstellationMessage`
- `ScriptMsg` → `ScriptToConstellationMessage`

This naming reflects that the `Constellation` stands in between the
embedding layer and the script layer and can receive messages from both.
Soon both of these message types will live in `constellation_traits`,
reflecting the idea that the `_traits` variant for a crate is
responsible for exposing the API for that crate.

Testing: No new tests are necessary here as this just renames two enums.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/components/script/dom/mediasession.rs b/components/script/dom/mediasession.rs
index fe5604daf85..f54335afb60 100644
--- a/components/script/dom/mediasession.rs
+++ b/components/script/dom/mediasession.rs
@@ -8,7 +8,7 @@ use dom_struct::dom_struct;
 use embedder_traits::{
     MediaMetadata as EmbedderMediaMetadata, MediaSessionActionType, MediaSessionEvent,
 };
-use script_traits::ScriptMsg;
+use script_traits::ScriptToConstellationMessage;
 
 use super::bindings::trace::HashMapTracedValues;
 use crate::conversions::Convert;
@@ -106,7 +106,10 @@ impl MediaSession {
         let global = self.global();
         let window = global.as_window();
         let pipeline_id = window.pipeline_id();
-        window.send_to_constellation(ScriptMsg::MediaSessionEvent(pipeline_id, event));
+        window.send_to_constellation(ScriptToConstellationMessage::MediaSessionEvent(
+            pipeline_id,
+            event,
+        ));
     }
 
     pub(crate) fn update_title(&self, title: String) {