Intersection Observer support for OOPIF

third_party/WebKit/Source/core/dom/IntersectionObserver.h

Index: third_party/WebKit/Source/core/dom/IntersectionObserver.h
diff --git a/third_party/WebKit/Source/core/dom/IntersectionObserver.h b/third_party/WebKit/Source/core/dom/IntersectionObserver.h
index 3281fcea96352ef256fc00bd74383250e40b02ac..b1678d21b16b5078f1757ad4fffa61ccfc87905a 100644
--- a/third_party/WebKit/Source/core/dom/IntersectionObserver.h
+++ b/third_party/WebKit/Source/core/dom/IntersectionObserver.h
@@ -65,6 +65,9 @@ class CORE_EXPORT IntersectionObserver final
 
   Node* rootNode() const { return m_root.get(); }
   LayoutObject* rootLayoutObject() const;
+  // rootLayoutObjectForIntersection can return nullptr, if the root is
+  // a main frame.
+  LayoutObject* rootLayoutObjectForIntersection() const;
   const Length& topMargin() const { return m_topMargin; }
   const Length& rightMargin() const { return m_rightMargin; }
   const Length& bottomMargin() const { return m_bottomMargin; }
@@ -93,7 +96,8 @@ class CORE_EXPORT IntersectionObserver final
   explicit IntersectionObserver(IntersectionObserverCallback&,
                                 Node&,
                                 const Vector<Length>& rootMargin,
-                                const Vector<float>& thresholds);
+                                const Vector<float>& thresholds,
+                                bool intersectWithRemoteAncestors);
   void clearWeakMembers(Visitor*);
 
   Member<IntersectionObserverCallback> m_callback;
@@ -106,6 +110,7 @@ class CORE_EXPORT IntersectionObserver final
   Length m_bottomMargin;
   Length m_leftMargin;
   InitialState m_initialState;
+  bool m_intersectWithRemoteAncestors;
 };
 
 }  // namespace blink