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..c824f8392fe703e3221e1e66198e0bd46ec39d18 100644
--- a/content/browser/frame_host/cross_process_frame_connector.h
+++ b/content/browser/frame_host/cross_process_frame_connector.h
@@ -145,6 +145,8 @@ 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,
+                                    const gfx::Point& root_offset);
   void OnVisibilityChanged(bool visible);
   void OnSatisfySequence(const cc::SurfaceSequence& sequence);
   void OnRequireSequence(const cc::SurfaceId& id,