| // Copyright 2014 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 CLASS_MULTIPLE_TRACE_BASES_H_ |
| #define CLASS_MULTIPLE_TRACE_BASES_H_ |
| |
| #include "heap/stubs.h" |
| |
| namespace blink { |
| |
| class Base : public GarbageCollected<Base> { |
| public: |
| virtual void trace(Visitor*); |
| }; |
| |
| class Mixin : public GarbageCollectedMixin { |
| public: |
| void trace(Visitor*); |
| }; |
| |
| class Derived : public Base, public Mixin { |
| USING_GARBAGE_COLLECTED_MIXIN(HeapObject); |
| // Requires trace method. |
| }; |
| |
| } |
| |
| #endif |