Do-not-commit: Count layout tree memory usage

third_party/WebKit/Source/core/layout/svg/LayoutSVGPath.h

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2006 Apple Computer, Inc
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  * Copyright (C) 2011 University of Szeged
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 22 matching lines @@
 class LayoutSVGPath final : public LayoutSVGShape {
  public:
   explicit LayoutSVGPath(SVGGeometryElement*);
   ~LayoutSVGPath() override;
 
   const Vector<MarkerPosition>* markerPositions() const override {
     return &m_markerPositions;
   }
 
   const char* name() const override { return "LayoutSVGPath"; }
+  char objectSize() const override { return sizeof(this); }
+  char approximateHeapMemoryUsage() const override {
+    int memory = LayoutSVGShape::approximateHeapMemoryUsage();
+    // TODO(pdr): Include memory from m_markerPositions.
+    return memory;
+  }
 
  private:
   void updateShapeFromElement() override;
   FloatRect hitTestStrokeBoundingBox() const override;
   FloatRect calculateUpdatedStrokeBoundingBox() const;
 
   FloatRect markerRect(float strokeWidth) const;
   bool shouldGenerateMarkerPositions() const;
   void processMarkerPositions();
 
   Vector<MarkerPosition> m_markerPositions;
 };
 
 }  // namespace blink
 
 #endif