script: Move webaudio DOM interfaces to script/dom/audio/ (#38894)

Moves interfaces defined by the webaudio spec (27 files) to the new
`script/dom/audio/` module from the `script/dom/` module.

Testing: Just a refactor shouldn't need any testing
Fixes: N/A

Signed-off-by: Ashwin Naren <arihant2math@gmail.com>

components/script/dom/audio/mediastreamaudiodestinationnode.rs

@@ -0,0 +1,104 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use dom_struct::dom_struct;
+use js::rust::HandleObject;
+use servo_media::ServoMedia;
+use servo_media::audio::node::AudioNodeInit;
+use servo_media::streams::MediaStreamType;
+
+use crate::dom::audio::audiocontext::AudioContext;
+use crate::dom::audio::audionode::{AudioNode, AudioNodeOptionsHelper};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    AudioNodeOptions, ChannelCountMode, ChannelInterpretation,
+};
+use crate::dom::bindings::codegen::Bindings::MediaStreamAudioDestinationNodeBinding::MediaStreamAudioDestinationNodeMethods;
+use crate::dom::bindings::error::Fallible;
+use crate::dom::bindings::inheritance::Castable;
+use crate::dom::bindings::reflector::{DomGlobal, reflect_dom_object_with_proto};
+use crate::dom::bindings::root::{Dom, DomRoot};
+use crate::dom::mediastream::MediaStream;
+use crate::dom::window::Window;
+use crate::script_runtime::CanGc;
+
+#[dom_struct]
+pub(crate) struct MediaStreamAudioDestinationNode {
+    node: AudioNode,
+    stream: Dom<MediaStream>,
+}
+
+impl MediaStreamAudioDestinationNode {
+    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
+    pub(crate) fn new_inherited(
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+        can_gc: CanGc,
+    ) -> Fallible<MediaStreamAudioDestinationNode> {
+        let media = ServoMedia::get();
+        let (socket, id) = media.create_stream_and_socket(MediaStreamType::Audio);
+        let stream = MediaStream::new_single(&context.global(), id, MediaStreamType::Audio, can_gc);
+        let node_options = options.unwrap_or(
+            2,
+            ChannelCountMode::Explicit,
+            ChannelInterpretation::Speakers,
+        );
+        let node = AudioNode::new_inherited(
+            AudioNodeInit::MediaStreamDestinationNode(socket),
+            context.upcast(),
+            node_options,
+            1, // inputs
+            0, // outputs
+        )?;
+        Ok(MediaStreamAudioDestinationNode {
+            node,
+            stream: Dom::from_ref(&stream),
+        })
+    }
+
+    pub(crate) fn new(
+        window: &Window,
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+        can_gc: CanGc,
+    ) -> Fallible<DomRoot<MediaStreamAudioDestinationNode>> {
+        Self::new_with_proto(window, None, context, options, can_gc)
+    }
+
+    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
+    fn new_with_proto(
+        window: &Window,
+        proto: Option<HandleObject>,
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+        can_gc: CanGc,
+    ) -> Fallible<DomRoot<MediaStreamAudioDestinationNode>> {
+        let node = MediaStreamAudioDestinationNode::new_inherited(context, options, can_gc)?;
+        Ok(reflect_dom_object_with_proto(
+            Box::new(node),
+            window,
+            proto,
+            can_gc,
+        ))
+    }
+}
+
+impl MediaStreamAudioDestinationNodeMethods<crate::DomTypeHolder>
+    for MediaStreamAudioDestinationNode
+{
+    /// <https://webaudio.github.io/web-audio-api/#dom-mediastreamaudiodestinationnode-mediastreamaudiodestinationnode>
+    fn Constructor(
+        window: &Window,
+        proto: Option<HandleObject>,
+        can_gc: CanGc,
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+    ) -> Fallible<DomRoot<MediaStreamAudioDestinationNode>> {
+        MediaStreamAudioDestinationNode::new_with_proto(window, proto, context, options, can_gc)
+    }
+
+    /// <https://webaudio.github.io/web-audio-api/#dom-mediastreamaudiodestinationnode-stream>
+    fn Stream(&self) -> DomRoot<MediaStream> {
+        DomRoot::from_ref(&self.stream)
+    }
+}