chromium/cc/animation/animation_timeline.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_ANIMATION_ANIMATION_TIMELINE_H_
#define CC_ANIMATION_ANIMATION_TIMELINE_H_

#include <memory>
#include <unordered_map>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "cc/animation/animation_export.h"
#include "cc/base/protected_sequence_synchronizer.h"
#include "cc/paint/element_id.h"

namespace base {
class TimeTicks;
}

namespace cc {

class Animation;
class AnimationHost;
class ScrollTree;

// An AnimationTimeline owns a group of Animations.
//
// Each AnimationTimeline and its Animations have copies on the impl thread. We
// synchronize the main and impl thread instances using their IDs.
class CC_ANIMATION_EXPORT AnimationTimeline
    : public base::RefCounted<AnimationTimeline>,
      public ProtectedSequenceSynchronizer { … };

}  // namespace cc

#endif  // CC_ANIMATION_ANIMATION_TIMELINE_H_