Do-not-commit: Count layout tree memory usage

third_party/WebKit/Source/core/layout/LayoutRubyText.h

 /*
  * Copyright (C) 2009 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 23 matching lines @@
 #include "core/layout/LayoutBlockFlow.h"
 
 namespace blink {
 
 class LayoutRubyText final : public LayoutBlockFlow {
  public:
   LayoutRubyText(Element*);
   ~LayoutRubyText() override;
 
   const char* name() const override { return "LayoutRubyText"; }
+  char objectSize() const override { return sizeof(this); }
 
   bool isOfType(LayoutObjectType type) const override {
     return type == LayoutObjectRubyText || LayoutBlockFlow::isOfType(type);
   }
 
   bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override;
 
  private:
   bool avoidsFloats() const override;
 
   ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const override;
   void adjustInlineDirectionLineBounds(unsigned expansionOpportunityCount,
                                        LayoutUnit& logicalLeft,
                                        LayoutUnit& logicalWidth) const override;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutRubyText, isRubyText());
 
 }  // namespace blink
 
 #endif  // LayoutRubyText_h