Replaced adjustScrollPositionWithinRange with clampScrollPosition

Source/core/paint/DeprecatedPaintLayerScrollableArea.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 205 matching lines @@
     IntRect rectForVerticalScrollbar(const IntRect& borderBoxRect) const;
 
 private:
     bool hasHorizontalOverflow() const;
     bool hasVerticalOverflow() const;
     bool hasScrollableHorizontalOverflow() const;
     bool hasScrollableVerticalOverflow() const;
 
     void computeScrollDimensions();
 
+    // TODO(bokan): This method hides the base class version and is subtly different.
+    // Should be unified.
     DoubleSize clampScrollOffset(const DoubleSize&) const;
 
     virtual void setScrollOffset(const IntPoint&, ScrollType) override;
     virtual void setScrollOffset(const DoublePoint&, ScrollType) override;
 
     LayoutUnit verticalScrollbarStart(int minX, int maxX) const;
     LayoutUnit horizontalScrollbarStart(int minX) const;
     IntSize scrollbarOffset(const Scrollbar*) const;
 
     PassRefPtrWillBeRawPtr<Scrollbar> createScrollbar(ScrollbarOrientation);
@@ skipping 44 matching lines @@
     // LayoutObject to hold our custom scroll corner.
     LayoutScrollbarPart* m_scrollCorner;
 
     // LayoutObject to hold our custom resizer.
     LayoutScrollbarPart* m_resizer;
 };
 
 } // namespace blink
 
 #endif // LayerScrollableArea_h