Blink Compositor Animation: Use PassOwnPtr in CompositorFactory.

third_party/WebKit/Source/platform/scroll/ScrollAnimator.cpp

 /*
  * Copyright (c) 2011, Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 207 matching lines @@
 
             m_compositorAnimationId = 0;
             m_compositorAnimationGroupId = 0;
 
             m_animationCurve->updateTarget(m_timeFunction() - m_startTime,
                 m_targetOffset);
             m_runState = RunState::WaitingToSendToCompositor;
         }
 
         if (!m_animationCurve) {
-            m_animationCurve = adoptPtr(CompositorFactory::current().createScrollOffsetAnimationCurve(
+            m_animationCurve = CompositorFactory::current().createScrollOffsetAnimationCurve(
                 m_targetOffset,
                 CompositorAnimationCurve::TimingFunctionTypeEaseInOut,
                 m_lastGranularity == ScrollByPixel ?
                     CompositorScrollOffsetAnimationCurve::ScrollDurationInverseDelta :
-                    CompositorScrollOffsetAnimationCurve::ScrollDurationConstant));
+                    CompositorScrollOffsetAnimationCurve::ScrollDurationConstant);
             m_animationCurve->setInitialValue(currentPosition());
         }
 
         bool sentToCompositor = false;
         if (!m_scrollableArea->shouldScrollOnMainThread()) {
-            OwnPtr<CompositorAnimation> animation = adoptPtr(
-                CompositorFactory::current().createAnimation(
-                    *m_animationCurve,
-                    CompositorAnimation::TargetPropertyScrollOffset));
+            OwnPtr<CompositorAnimation> animation = CompositorFactory::current().createAnimation(
+                *m_animationCurve,
+                CompositorAnimation::TargetPropertyScrollOffset);
             // Being here means that either there is an animation that needs
             // to be sent to the compositor, or an animation that needs to
             // be updated (a new scroll event before the previous animation
             // is finished). In either case, the start time is when the
             // first animation was initiated. This re-targets the animation
             // using the current time on main thread.
             animation->setStartTime(m_startTime);
 
             int animationId = animation->id();
             int animationGroupId = animation->group();
@@ skipping 46 matching lines @@
     }
     return true;
 }
 
 DEFINE_TRACE(ScrollAnimator)
 {
     ScrollAnimatorBase::trace(visitor);
 }
 
 } // namespace blink