compositor: Make input event handling per-WebView (#35716)

This is another step in the move to having a per-WebView renderer. In
this step event handling is made per-WebView. Most events sent to Servo
are sent via the WebView API already, so this just moves more event
handling code to the per-WebView render portion of the compositor.

- ServoRenderer is given shared ownership and interior mutability as
  it is now shared among all WebView(Renderers).
- Some messages coming from other parts of Servo must now carry a
  WebViewId as well so that they can be associated with a particular
  WebView.
- There needs to be some reorganization of `ServoRenderer` in order to
  avoid issues with double borrow of `RefCells`.

Signed-off-by: Delan Azabani <dazabani@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/components/shared/compositing/constellation_msg.rs b/components/shared/compositing/constellation_msg.rs
index a07b943d7e6..412cfcba32a 100644
--- a/components/shared/compositing/constellation_msg.rs
+++ b/components/shared/compositing/constellation_msg.rs
@@ -62,7 +62,7 @@ pub enum ConstellationMsg {
     /// Make none of the webviews focused.
     BlurWebView,
     /// Forward an input event to an appropriate ScriptTask.
-    ForwardInputEvent(InputEvent, Option<CompositorHitTestResult>),
+    ForwardInputEvent(WebViewId, InputEvent, Option<CompositorHitTestResult>),
     /// Requesting a change to the onscreen cursor.
     SetCursor(WebViewId, Cursor),
     /// Enable the sampling profiler, with a given sampling rate and max total sampling duration.