Auto merge of #22948 - shanavas786:niko-master, r=jdm

Move RenderNotifier from compositing component to servo component

<!-- Please describe your changes on the following line: -->
I have absorbed #22713 into this.

---
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #22707

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components/compositing/compositor.rs

@@ -2,7 +2,7 @@
  * 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 crate::compositor_thread::{CompositorProxy, CompositorReceiver};
+use crate::compositor_thread::CompositorReceiver;
 use crate::compositor_thread::{InitialCompositorState, Msg};
 #[cfg(feature = "gl")]
 use crate::gl;
@@ -249,45 +249,6 @@ enum CompositeTarget {
     PngFile,
 }
 
-#[derive(Clone)]
-pub struct RenderNotifier {
-    compositor_proxy: CompositorProxy,
-}
-
-impl RenderNotifier {
-    pub fn new(compositor_proxy: CompositorProxy) -> RenderNotifier {
-        RenderNotifier {
-            compositor_proxy: compositor_proxy,
-        }
-    }
-}
-
-impl webrender_api::RenderNotifier for RenderNotifier {
-    fn clone(&self) -> Box<dyn webrender_api::RenderNotifier> {
-        Box::new(RenderNotifier::new(self.compositor_proxy.clone()))
-    }
-
-    fn wake_up(&self) {
-        self.compositor_proxy
-            .recomposite(CompositingReason::NewWebRenderFrame);
-    }
-
-    fn new_frame_ready(
-        &self,
-        _document_id: webrender_api::DocumentId,
-        scrolled: bool,
-        composite_needed: bool,
-        _render_time_ns: Option<u64>,
-    ) {
-        if scrolled {
-            self.compositor_proxy
-                .send(Msg::NewScrollFrameReady(composite_needed));
-        } else {
-            self.wake_up();
-        }
-    }
-}
-
 impl<Window: WindowMethods> IOCompositor<Window> {
     fn new(window: Rc<Window>, state: InitialCompositorState) -> Self {
         let composite_target = match opts::get().output_file {

components/compositing/lib.rs

@@ -7,8 +7,8 @@
 #[macro_use]
 extern crate log;
 
+pub use crate::compositor::CompositingReason;
 pub use crate::compositor::IOCompositor;
-pub use crate::compositor::RenderNotifier;
 pub use crate::compositor::ShutdownState;
 pub use crate::compositor_thread::CompositorProxy;
 use ipc_channel::ipc::IpcSender;

components/servo/lib.rs

@@ -65,9 +65,11 @@ use bluetooth::BluetoothThreadFactory;
 use bluetooth_traits::BluetoothRequest;
 use canvas::gl_context::GLContextFactory;
 use canvas::webgl_thread::WebGLThreads;
-use compositing::compositor_thread::{CompositorProxy, CompositorReceiver, InitialCompositorState};
+use compositing::compositor_thread::{
+    CompositorProxy, CompositorReceiver, InitialCompositorState, Msg,
+};
 use compositing::windowing::{WindowEvent, WindowMethods};
-use compositing::{IOCompositor, RenderNotifier, ShutdownState};
+use compositing::{CompositingReason, IOCompositor, ShutdownState};
 #[cfg(all(
     not(target_os = "windows"),
     not(target_os = "ios"),
@@ -132,6 +134,45 @@ pub struct Servo<Window: WindowMethods + 'static> {
     embedder_events: Vec<(Option<BrowserId>, EmbedderMsg)>,
 }
 
+#[derive(Clone)]
+struct RenderNotifier {
+    compositor_proxy: CompositorProxy,
+}
+
+impl RenderNotifier {
+    pub fn new(compositor_proxy: CompositorProxy) -> RenderNotifier {
+        RenderNotifier {
+            compositor_proxy: compositor_proxy,
+        }
+    }
+}
+
+impl webrender_api::RenderNotifier for RenderNotifier {
+    fn clone(&self) -> Box<dyn webrender_api::RenderNotifier> {
+        Box::new(RenderNotifier::new(self.compositor_proxy.clone()))
+    }
+
+    fn wake_up(&self) {
+        self.compositor_proxy
+            .recomposite(CompositingReason::NewWebRenderFrame);
+    }
+
+    fn new_frame_ready(
+        &self,
+        _document_id: webrender_api::DocumentId,
+        scrolled: bool,
+        composite_needed: bool,
+        _render_time_ns: Option<u64>,
+    ) {
+        if scrolled {
+            self.compositor_proxy
+                .send(Msg::NewScrollFrameReady(composite_needed));
+        } else {
+            self.wake_up();
+        }
+    }
+}
+
 impl<Window> Servo<Window>
 where
     Window: WindowMethods + 'static,