Initial implementation of WorkletAnimation

third_party/WebKit/Source/core/dom/Document.h

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index 92c145998e359219f57d29780fc5d3af6d0a28d0..034be3acac0bb83814c3edce4cc645cc6ea9f923 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -171,6 +171,8 @@ class TreeWalker;
 class V8NodeFilterCondition;
 class VisitedLinkState;
 class WebMouseEvent;
+class WorkletAnimationBase;
+class WorkletAnimationController;
 struct AnnotatedRegionValue;
 struct FocusParams;
 struct IconURL;
@@ -1134,6 +1136,12 @@ class CORE_EXPORT Document : public ContainerNode,
   void CancelAnimationFrame(int id);
   void ServiceScriptedAnimations(double monotonic_animation_start_time);
 
+  WorkletAnimationController& GetWorkletAnimationController() {
+    return *worklet_animation_controller_;
+  }
+  void RegisterWorkletAnimation(WorkletAnimationBase*);
+  void DeregisterWorkletAnimation(WorkletAnimationBase*);
+
   int RequestIdleCallback(IdleRequestCallback*, const IdleRequestOptions&);
   void CancelIdleCallback(int id);
 
@@ -1654,6 +1662,7 @@ class CORE_EXPORT Document : public ContainerNode,
 
   Member<DocumentTimeline> timeline_;
   Member<CompositorPendingAnimations> compositor_pending_animations_;
+  Member<WorkletAnimationController> worklet_animation_controller_;
 
   Member<Document> template_document_;
   Member<Document> template_document_host_;