Intersection Observer support for OOPIF

third_party/WebKit/Source/core/frame/RemoteFrameClient.h

Index: third_party/WebKit/Source/core/frame/RemoteFrameClient.h
diff --git a/third_party/WebKit/Source/core/frame/RemoteFrameClient.h b/third_party/WebKit/Source/core/frame/RemoteFrameClient.h
index 400a73a43aa6aa9c659c72dee6f9ddcbf39cf741..8d187f85674dd74292182903d941cb61bf054c57 100644
--- a/third_party/WebKit/Source/core/frame/RemoteFrameClient.h
+++ b/third_party/WebKit/Source/core/frame/RemoteFrameClient.h
@@ -13,6 +13,7 @@
 namespace blink {
 
 class Event;
+class IntPoint;
 class IntRect;
 class ResourceRequest;
 
@@ -36,6 +37,10 @@ class RemoteFrameClient : public FrameClient {
 
   virtual void frameRectsChanged(const IntRect& frameRect) = 0;
 
+  virtual void updateRemoteViewportIntersection(
+      const IntRect& viewportIntersection,
+      const IntPoint& rootOffset) = 0;
+
   virtual void advanceFocus(WebFocusType, LocalFrame* source) = 0;
 
   virtual void visibilityChanged(bool visible) = 0;