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// Copyright 2013 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 BASE_MEMORY_DISCARDABLE_MEMORY_EMULATED_H_
#define BASE_MEMORY_DISCARDABLE_MEMORY_EMULATED_H_
#include "base/memory/discardable_memory.h"
namespace base {
namespace internal {
class DiscardableMemoryEmulated : public DiscardableMemory {
public:
explicit DiscardableMemoryEmulated(size_t size);
virtual ~DiscardableMemoryEmulated();
static void RegisterMemoryPressureListeners();
static void UnregisterMemoryPressureListeners();
static void PurgeForTesting();
bool Initialize();
// Overridden from DiscardableMemory:
virtual DiscardableMemoryLockStatus Lock() OVERRIDE;
virtual void Unlock() OVERRIDE;
virtual void* Memory() const OVERRIDE;
private:
scoped_ptr<uint8, FreeDeleter> memory_;
bool is_locked_;
DISALLOW_COPY_AND_ASSIGN(DiscardableMemoryEmulated);
};
} // namespace internal
} // namespace base
#endif // BASE_MEMORY_DISCARDABLE_MEMORY_EMULATED_H_
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