First Implementation of Snapped Points

third_party/WebKit/public/platform/WebLayer.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 38 matching lines @@
 class FilterOperations;
 struct ElementId;
 }
 
 namespace blink {
 
 class WebLayerScrollClient;
 struct WebFloatPoint;
 struct WebLayerPositionConstraint;
 struct WebLayerStickyPositionConstraint;
+struct WebSnapPointList;
 
 class WebLayer {
  public:
   virtual ~WebLayer() {}
 
   static constexpr int kInvalidLayerId = cc::Layer::INVALID_ID;
 
   // Returns a positive ID that will be unique across all WebLayers allocated in
   // this process.
   virtual int Id() const = 0;
@@ skipping 133 matching lines @@
       const WebLayerStickyPositionConstraint&) = 0;
   virtual WebLayerStickyPositionConstraint StickyPositionConstraint() const = 0;
 
   // The scroll client is notified when the scroll position of the WebLayer
   // changes. Only a single scroll client can be set for a WebLayer at a time.
   // The WebLayer does not take ownership of the scroll client, and it is the
   // responsibility of the client to reset the layer's scroll client before
   // deleting the scroll client.
   virtual void SetScrollClient(WebLayerScrollClient*) = 0;
 
+  virtual void SetScrollSnapOffsets(const WebSnapPointList&) = 0;
+
   // Sets the cc-side layer client.
   virtual void SetLayerClient(cc::LayerClient*) = 0;
 
   // Gets the underlying cc layer.
   virtual const cc::Layer* CcLayer() const = 0;
   virtual cc::Layer* CcLayer() = 0;
 
   virtual void SetElementId(const cc::ElementId&) = 0;
   virtual cc::ElementId GetElementId() const = 0;
 
   virtual void SetCompositorMutableProperties(uint32_t) = 0;
   virtual uint32_t CompositorMutableProperties() const = 0;
 
   virtual void SetHasWillChangeTransformHint(bool) = 0;
 
   // Called on the scroll layer to trigger showing the overlay scrollbars.
   virtual void ShowScrollbars() = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebLayer_h