Intersection Observer support for OOPIF

content/browser/frame_host/cross_process_frame_connector.h

Index: content/browser/frame_host/cross_process_frame_connector.h
diff --git a/content/browser/frame_host/cross_process_frame_connector.h b/content/browser/frame_host/cross_process_frame_connector.h
index 5d7570a496cedd28c87fe76a30e857a31652ef42..a567322eecf9c810923a0ca4a7a29478ef0266f5 100644
--- a/content/browser/frame_host/cross_process_frame_connector.h
+++ b/content/browser/frame_host/cross_process_frame_connector.h
@@ -145,6 +145,7 @@ class CONTENT_EXPORT CrossProcessFrameConnector {
   // Handlers for messages received from the parent frame.
   void OnForwardInputEvent(const blink::WebInputEvent* event);
   void OnFrameRectChanged(const gfx::Rect& frame_rect);
+  void OnUpdateViewportIntersection(const gfx::Rect& viewport_intersection);
   void OnVisibilityChanged(bool visible);
   void OnSatisfySequence(const cc::SurfaceSequence& sequence);
   void OnRequireSequence(const cc::SurfaceId& id,