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// 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 CONTENT_CHILD_WEB_DISCARDABLE_MEMORY_IMPL_H_
#define CONTENT_CHILD_WEB_DISCARDABLE_MEMORY_IMPL_H_
#include <stddef.h>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "third_party/WebKit/public/platform/WebDiscardableMemory.h"
namespace base {
class DiscardableMemory;
}
namespace content {
// Implementation of WebDiscardableMemory that is responsible for allocating
// discardable memory.
class WebDiscardableMemoryImpl : public blink::WebDiscardableMemory {
public:
~WebDiscardableMemoryImpl() override;
static scoped_ptr<WebDiscardableMemoryImpl> CreateLockedMemory(size_t size);
// blink::WebDiscardableMemory:
bool lock() override;
void unlock() override;
void* data() override;
blink::WebMemoryAllocatorDump* createMemoryAllocatorDump(
const blink::WebString& name,
blink::WebProcessMemoryDump* wpmd) const override;
private:
WebDiscardableMemoryImpl(scoped_ptr<base::DiscardableMemory> memory);
scoped_ptr<base::DiscardableMemory> discardable_;
DISALLOW_COPY_AND_ASSIGN(WebDiscardableMemoryImpl);
};
} // namespace content
#endif // CONTENT_CHILD_WEB_DISCARDABLE_MEMORY_IMPL_H_
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