Convert //cc from scoped_ptr to std::unique_ptr.

cc/animation/animation_delegate.h

Index: cc/animation/animation_delegate.h
diff --git a/cc/animation/animation_delegate.h b/cc/animation/animation_delegate.h
index aee077cd170700b4cfcf0e619d4cbd1bf63cc2fe..c7ec2bb3321edba1850ed864f54efa64ab286565 100644
--- a/cc/animation/animation_delegate.h
+++ b/cc/animation/animation_delegate.h
@@ -24,10 +24,11 @@ class CC_EXPORT AnimationDelegate {
                                       TargetProperty::Type target_property,
                                       int group) = 0;
 
-  virtual void NotifyAnimationTakeover(base::TimeTicks monotonic_time,
-                                       TargetProperty::Type target_property,
-                                       double animation_start_time,
-                                       scoped_ptr<AnimationCurve> curve) = 0;
+  virtual void NotifyAnimationTakeover(
+      base::TimeTicks monotonic_time,
+      TargetProperty::Type target_property,
+      double animation_start_time,
+      std::unique_ptr<AnimationCurve> curve) = 0;
 
  protected:
   virtual ~AnimationDelegate() {}