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 2b2160d135eb6edebb3f6988dfca373495c6af7a..6af51086af973f0bc9890acf6a56c087cfc517f6 100644
--- a/content/browser/frame_host/cross_process_frame_connector.h
+++ b/content/browser/frame_host/cross_process_frame_connector.h
@@ -144,6 +144,7 @@ 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,