[RootLayerScrolls] Annotate non-fast-scroll regions to correct layer

third_party/WebKit/Source/core/paint/PaintLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. 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>
@@ skipping 879 matching lines @@
       const PaintLayer* rootLayer,
       TransparencyClipBoxBehavior transparencyBehavior,
       TransparencyClipBoxMode transparencyMode,
       const LayoutSize& subPixelAccumulation,
       GlobalPaintFlags = GlobalPaintNormalPhase);
 
   bool needsRepaint() const { return m_needsRepaint; }
   void setNeedsRepaint();
   void clearNeedsRepaintRecursively();
 
+  ClientRectList* nonFastScrollableRects() const;
+
   // These previousXXX() functions are for subsequence caching. They save the
   // painting status of the layer during the previous painting with subsequence.
   // A painting without subsequence [1] doesn't change this status.  [1] See
   // shouldCreateSubsequence() in PaintLayerPainter.cpp for the cases we use
   // subsequence when painting a PaintLayer.
 
   IntSize previousScrollOffsetAccumulationForPainting() const {
     return m_previousScrollOffsetAccumulationForPainting;
   }
   void setPreviousScrollOffsetAccumulationForPainting(const IntSize& s) {
@@ skipping 335 matching lines @@
 
 }  // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 CORE_EXPORT void showLayerTree(const blink::PaintLayer*);
 CORE_EXPORT void showLayerTree(const blink::LayoutObject*);
 #endif
 
 #endif  // Layer_h