// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_REQUIRES_TRACING_H_
#define BASE_REQUIRES_TRACING_H_
#include "heap/stubs.h"
namespace blink {
class A : public GarbageCollected<A> {
public:
virtual void Trace(Visitor*) const;
};
class B : public A {
// Does not need Trace
};
class C : public B {
public:
void Trace(Visitor*) const;
private:
Member<A> m_a;
};
class D : public C {
public:
void Trace(Visitor*) const;
private:
Member<A> m_a;
};
}
#endif