Use std::unique_ptr<> for WebTaskRunner::clone

third_party/WebKit/Source/platform/mac/ScrollAnimatorMac.mm

 /*
  * Copyright (C) 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 665 matching lines @@
 
 ScrollAnimatorBase* ScrollAnimatorBase::create(ScrollableArea* scrollableArea)
 {
     return new ScrollAnimatorMac(scrollableArea);
 }
 
 ScrollAnimatorMac::ScrollAnimatorMac(ScrollableArea* scrollableArea)
     : ScrollAnimatorBase(scrollableArea)
     , m_initialScrollbarPaintTaskFactory(CancellableTaskFactory::create(this, &ScrollAnimatorMac::initialScrollbarPaintTask))
     , m_sendContentAreaScrolledTaskFactory(CancellableTaskFactory::create(this, &ScrollAnimatorMac::sendContentAreaScrolledTask))
-    , m_taskRunner(wrapUnique(Platform::current()->currentThread()->scheduler()->timerTaskRunner()->clone()))
+    , m_taskRunner(Platform::current()->currentThread()->scheduler()->timerTaskRunner()->clone())
     , m_haveScrolledSincePageLoad(false)
     , m_needsScrollerStyleUpdate(false)
 {
     ThreadState::current()->registerPreFinalizer(this);
 
     m_scrollAnimationHelperDelegate.adoptNS([[BlinkScrollAnimationHelperDelegate alloc] initWithScrollAnimator:this]);
     m_scrollAnimationHelper.adoptNS([[NSClassFromString(@"NSScrollAnimationHelper") alloc] initWithDelegate:m_scrollAnimationHelperDelegate.get()]);
 
     m_scrollbarPainterControllerDelegate.adoptNS([[BlinkScrollbarPainterControllerDelegate alloc] initWithScrollableArea:scrollableArea]);
     m_scrollbarPainterController = [[[NSClassFromString(@"NSScrollerImpPair") alloc] init] autorelease];
@@ skipping 404 matching lines @@
     if (Scrollbar* verticalScrollbar = m_scrollableArea->verticalScrollbar())
         rectInViewCoordinates = verticalScrollbar->convertToContainingWidget(scrollerThumb);
 
     if (rectInViewCoordinates == m_visibleScrollerThumbRect)
         return;
 
     m_visibleScrollerThumbRect = rectInViewCoordinates;
 }
 
 } // namespace blink