Introduce animation frame tasks

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 1062 matching lines @@
   bool isContextThread() const final;
   bool isJSExecutionForbidden() const final { return false; }
 
   bool containsValidityStyleRules() const {
     return m_containsValidityStyleRules;
   }
   void setContainsValidityStyleRules() { m_containsValidityStyleRules = true; }
 
   void enqueueResizeEvent();
   void enqueueScrollEventForNode(Node*);
+  void enqueueAnimationFrameTask(std::unique_ptr<WTF::Closure>);
   void enqueueAnimationFrameEvent(Event*);
   // Only one event for a target/event type combination will be dispatched per
   // frame.
   void enqueueUniqueAnimationFrameEvent(Event*);
   void enqueueMediaQueryChangeListeners(
       HeapVector<Member<MediaQueryListListener>>&);
   void enqueueVisualViewportScrollEvent();
   void enqueueVisualViewportResizeEvent();
 
   void dispatchEventsForPrinting();
@@ skipping 618 matching lines @@
 DEFINE_TYPE_CASTS(TreeScope, Document, document, true, true);
 
 }  // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 CORE_EXPORT void showLiveDocumentInstances();
 #endif
 
 #endif  // Document_h