Replace various ScrollableArea scroll methods with setScrollPosition

Source/core/frame/PinchViewport.h

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 164 matching lines @@
     virtual DoublePoint maximumScrollPositionDouble() const override;
     virtual int visibleHeight() const override { return visibleRect().height(); };
     virtual int visibleWidth() const override { return visibleRect().width(); };
     virtual IntSize contentsSize() const override;
     virtual bool scrollbarsCanBeActive() const override { return false; }
     virtual IntRect scrollableAreaBoundingBox() const override;
     virtual bool userInputScrollable(ScrollbarOrientation) const override { return true; }
     virtual bool shouldPlaceVerticalScrollbarOnLeft() const override { return false; }
     virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&) override;
     virtual void invalidateScrollCornerRect(const IntRect&) override { }
-    virtual void setScrollOffset(const IntPoint&) override;
-    virtual void setScrollOffset(const DoublePoint&) override;
+    virtual void setScrollOffset(const IntPoint&, ScrollType) override;
+    virtual void setScrollOffset(const DoublePoint&, ScrollType) override;
     virtual GraphicsLayer* layerForContainer() const override;
     virtual GraphicsLayer* layerForScrolling() const override;
     virtual GraphicsLayer* layerForHorizontalScrollbar() const override;
     virtual GraphicsLayer* layerForVerticalScrollbar() const override;
 
 private:
     explicit PinchViewport(FrameHost&);
 
     // GraphicsLayerClient implementation.
     virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) override;
@@ skipping 26 matching lines @@
     // Offset of the pinch viewport from the main frame's origin, in CSS pixels.
     FloatPoint m_offset;
     float m_scale;
     IntSize m_size;
     float m_topControlsAdjustment;
 };
 
 } // namespace blink
 
 #endif // PinchViewport_h