Simplify RenderingContext trait methods (#35251)

There are a few methods are still difficult to implement without
the help of surfman. To simplify the trait methods, all methods that
return surfman types are removed. They are either handled by
embedders themselves or abstract to simpler types that servo
components need. The most noticeable changes are:

- Methods related to native surface are moved to servo_glue. The
  embedder should decide when to remove/replace the surface and it's
  outside of servo's scope.
- Methods required by servo media now return exact media types for it.

The other major change is sevevral difficult trait methods that are
reuiqred by WebGL and Servo media have default implementation. So they
can be optional for users to implement.

Signed-off-by: Wu Wayne <yuweiwu@pm.me>

components/compositing/compositor.rs

@@ -479,23 +479,6 @@ impl IOCompositor {
         self.shutdown_state = ShutdownState::FinishedShuttingDown;
     }
 
-    /// The underlying native surface can be lost during servo's lifetime.
-    /// On Android, for example, this happens when the app is sent to background.
-    /// We need to unbind the surface so that we don't try to use it again.
-    pub fn invalidate_native_surface(&mut self) {
-        debug!("Invalidating native surface in compositor");
-        self.rendering_context.invalidate_native_surface();
-    }
-
-    /// On Android, this function will be called when the app moves to foreground
-    /// and the system creates a new native surface that needs to bound to the current
-    /// context.
-    pub fn replace_native_surface(&mut self, native_widget: *mut c_void, coords: DeviceIntSize) {
-        debug!("Replacing native surface in compositor: {native_widget:?}");
-        self.rendering_context
-            .replace_native_surface(native_widget, coords);
-    }
-
     fn handle_browser_message(&mut self, msg: CompositorMsg) -> bool {
         trace_msg_from_constellation!(msg, "{msg:?}");