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// Copyright 2016 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 CompositorMutableStateProvider_h
#define CompositorMutableStateProvider_h
#include "platform/PlatformExport.h"
#include "wtf/PassOwnPtr.h"
#include <cstdint>
namespace cc {
class LayerListImpl;
} // namespace cc
namespace blink {
class CompositorMutableState;
struct CompositorMutations;
// This class is a window onto compositor-owned state. It vends out wrappers
// around per-element bits of this state.
class PLATFORM_EXPORT CompositorMutableStateProvider {
public:
CompositorMutableStateProvider(cc::LayerListImpl*, CompositorMutations*);
~CompositorMutableStateProvider();
PassOwnPtr<CompositorMutableState> getMutableStateFor(uint64_t elementId);
private:
cc::LayerListImpl* m_state;
CompositorMutations* m_mutations;
};
} // namespace blink
#endif // CompositorMutableStateProvider_h
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