Do-not-commit: Count layout tree memory usage

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

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2008 Torch Mobile Inc. All rights reserved.
  *               (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 22 matching lines @@
 
 class CORE_EXPORT LayoutTextControl : public LayoutBlockFlow {
  public:
   ~LayoutTextControl() override;
 
   TextControlElement* textControlElement() const;
   virtual PassRefPtr<ComputedStyle> createInnerEditorStyle(
       const ComputedStyle& startStyle) const = 0;
 
   const char* name() const override { return "LayoutTextControl"; }
+  char objectSize() const override { return sizeof(this); }
 
  protected:
   LayoutTextControl(TextControlElement*);
 
   // This convenience function should not be made public because
   // innerEditorElement may outlive the layout tree.
   HTMLElement* innerEditorElement() const;
 
   int scrollbarThickness() const;
   void adjustInnerEditorStyle(ComputedStyle& textBlockStyle) const;
@@ skipping 72 matching lines @@
   }
   int firstLineBoxBaseline() const override {
     return LayoutBlock::firstLineBoxBaseline();
   }
   int inlineBlockBaseline(LineDirectionMode direction) const override {
     return LayoutBlock::inlineBlockBaseline(direction);
   }
   bool shouldIgnoreOverflowPropertyForInlineBlockBaseline() const override {
     return true;
   }
+
+  char objectSize() const override { return sizeof(this); }
 };
 
 }  // namespace blink
 
 #endif  // LayoutTextControl_h