blink: Cleanup class forward declarations

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

 /*
  * 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 22 matching lines @@
 
 #include "platform/Timer.h"
 #include "platform/animation/CompositorAnimationDelegate.h"
 #include "platform/animation/CompositorAnimationPlayerClient.h"
 #include "platform/animation/CompositorScrollOffsetAnimationCurve.h"
 #include "platform/scroll/ScrollAnimatorBase.h"
 #include <memory>
 
 namespace blink {
 
-class ScrollAnimatorTest;
 class CompositorAnimationTimeline;
 
 class PLATFORM_EXPORT ScrollAnimator : public ScrollAnimatorBase {
  public:
   explicit ScrollAnimator(ScrollableArea*,
                           WTF::TimeFunction = WTF::monotonicallyIncreasingTime);
   ~ScrollAnimator() override;
 
   bool hasRunningAnimation() const override;
   ScrollOffset computeDeltaToConsume(const ScrollOffset& delta) const override;
@@ skipping 47 matching lines @@
   // because we are already at targetPos.
   bool willAnimateToOffset(const ScrollOffset& targetPos);
 
   ScrollOffset m_targetOffset;
   ScrollGranularity m_lastGranularity;
 };
 
 }  // namespace blink
 
 #endif  // ScrollAnimator_h