libservo: Expose `SoftwareRenderingContext` and `WindowRenderingContext` (#35501)

Expose two easy-to-use wrappers around `SurfmanRenderingContext` that
make the API simpler to use:

- `WindowRenderingContext`: This `RenderingContext` is a newtype around
  `SurfmanRenderingContext` takes a `raw-window-handle` display and window
  and creates a full window rendering context.
- `SoftwareRenderingContext`: is wraps `SurfmanRenderingContext` and
  adds a swap chain in order to expose a software GL rendering context.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/components/servo/webview.rs b/components/servo/webview.rs
index e659e5d3073..f7264607d37 100644
--- a/components/servo/webview.rs
+++ b/components/servo/webview.rs
@@ -414,4 +414,8 @@ impl WebView {
             .constellation_proxy
             .send(ConstellationMsg::SendError(Some(self.id()), message));
     }
+
+    pub fn paint_immediately(&self) {
+        self.inner().compositor.borrow_mut().composite();
+    }
 }