Do not commit: Object paint property statistics

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PrePaintTreeWalk_h
 #define PrePaintTreeWalk_h
 
 #include "core/paint/ClipRect.h"
 #include "core/paint/PaintInvalidator.h"
 #include "core/paint/PaintPropertyTreeBuilder.h"
 
 namespace blink {
 
 class FrameView;
 class GeometryMapper;
 class LayoutObject;
 struct PrePaintTreeWalkContext;
 
+struct TreeStats;
+
 // This class walks the whole layout tree, beginning from the root FrameView,
 // across frame boundaries. Helper classes are called for each tree node to
 // perform actual actions.  It expects to be invoked in InPrePaint phase.
 class PrePaintTreeWalk {
  public:
   PrePaintTreeWalk(GeometryMapper& geometryMapper)
       : m_paintInvalidator(geometryMapper), m_geometryMapper(geometryMapper) {}
   void walk(FrameView& rootFrame);
 
+  void printStats(const FrameView& rootFrame);
+  void countStats(TreeStats&, const FrameView&);
+  void countStats(TreeStats&, const LayoutObject&);
+
  private:
   void walk(FrameView&, const PrePaintTreeWalkContext&);
   void walk(const LayoutObject&, const PrePaintTreeWalkContext&);
 
   // Invalidates paint-layer painting optimizations, such as subsequence caching
   // and empty paint phase optimizations if clips from the context have changed.
   void invalidatePaintLayerOptimizationsIfNeeded(const LayoutObject&,
                                                  PrePaintTreeWalkContext&);
 
   // Returns in |clipRect| the clip applied to children for the given
@@ skipping 11 matching lines @@
   bool shouldEndWalkBefore(const LayoutObject&, const PrePaintTreeWalkContext&);
 
   PaintPropertyTreeBuilder m_propertyTreeBuilder;
   PaintInvalidator m_paintInvalidator;
   GeometryMapper& m_geometryMapper;
 };
 
 }  // namespace blink
 
 #endif  // PrePaintTreeWalk_h