First Implementation of Snapped Points

third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.h

Index: third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.h
diff --git a/third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.h b/third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.h
index c9f55585154c3f4bc568bd9f3ac6b1f7e5cca3df..cfa3fea56fc135c6df13ed88ecbfc88516d7fd5c 100644
--- a/third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.h
+++ b/third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.h
@@ -15,6 +15,9 @@ namespace blink {
 class ContainerNode;
 class LayoutBox;
 struct LengthPoint;
+struct ScrollSnapType;
+struct ScrollSnapAlign;
+struct WebSnapPointList;
 
 // Snap Coordinator keeps track of snap containers and all of their associated
 // snap areas. It also contains the logic to generate the list of valid snap
@@ -39,8 +42,11 @@ class CORE_EXPORT SnapCoordinator final
   DEFINE_INLINE_TRACE() {}
 
   void SnapContainerDidChange(LayoutBox&, ScrollSnapType);
-  void SnapAreaDidChange(LayoutBox&,
-                         const Vector<LengthPoint>& snap_coordinates);
+  /*void SnapAreaDidChange(LayoutBox&,
+                         const Vector<LengthPoint>& snap_coordinates);*/
+  void SnapAreaDidChange(LayoutBox&, ScrollSnapAlign);
+
+  WebSnapPointList SnapOffsets(const ContainerNode&);
 
 #ifndef NDEBUG
   void ShowSnapAreaMap();
@@ -50,8 +56,7 @@ class CORE_EXPORT SnapCoordinator final
  private:
   friend class SnapCoordinatorTest;
   explicit SnapCoordinator();
-
-  Vector<double> SnapOffsets(const ContainerNode&, ScrollbarOrientation);
+  // Vector<double> SnapOffsets(const ContainerNode&, ScrollbarOrientation);
 
   HashSet<const LayoutBox*> snap_containers_;
 };