Move ScrollableArea timer to TaskRunnerTimer.

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 574 matching lines @@
     MapCoordinatesFlags flags) const {
   LayoutBox* box = layoutBox();
   if (!box)
     return quad;
   DCHECK(localObject);
   FloatQuad result = localObject->localToAncestorQuad(quad, box, flags);
   result.move(-getScrollOffset());
   return result;
 }
 
+RefPtr<WebTaskRunner> FrameView::getTimerTaskRunner() const {
+  return TaskRunnerHelper::get(TaskType::UnspecedTimer, m_frame.get());
+}
+
 void FrameView::setCanHaveScrollbars(bool canHaveScrollbars) {
   m_canHaveScrollbars = canHaveScrollbars;
 
   ScrollbarMode newVerticalMode = m_verticalScrollbarMode;
   if (canHaveScrollbars && m_verticalScrollbarMode == ScrollbarAlwaysOff)
     newVerticalMode = ScrollbarAuto;
   else if (!canHaveScrollbars)
     newVerticalMode = ScrollbarAlwaysOff;
 
   ScrollbarMode newHorizontalMode = m_horizontalScrollbarMode;
@@ skipping 4384 matching lines @@
   // This is the top-level frame, so no mapping necessary.
   if (m_frame->isMainFrame())
     return;
 
   LayoutRect viewportIntersectionRect(remoteViewportIntersection());
   transformState.move(
       LayoutSize(-viewportIntersectionRect.x(), -viewportIntersectionRect.y()));
 }
 
 }  // namespace blink