Web Animations: Remove legacy animations engine.

Source/core/rendering/RenderObject.h

Index: Source/core/rendering/RenderObject.h
diff --git a/Source/core/rendering/RenderObject.h b/Source/core/rendering/RenderObject.h
index c0de169ae7ec0f9b7a3895708c42166f0a5e6e09..0187682f0f2a97a0167552fff28d063b3b704f41 100644
--- a/Source/core/rendering/RenderObject.h
+++ b/Source/core/rendering/RenderObject.h
@@ -44,7 +44,6 @@
 namespace WebCore {
 
 class AffineTransform;
-class AnimationController;
 class Cursor;
 class Document;
 class HitTestLocation;
@@ -701,11 +700,6 @@ public:
 
     virtual void dirtyLinesFromChangedChild(RenderObject*);
 
-    // Called to update a style that is allowed to trigger animations.
-    // FIXME: Right now this will typically be called only when updating happens from the DOM on explicit elements.
-    // We don't yet handle generated content animation such as first-letter or before/after (we'll worry about this later).
-    void setAnimatableStyle(PassRefPtr<RenderStyle>);
-
     // Set the style of the object and update the state of the object accordingly.
     void setStyle(PassRefPtr<RenderStyle>);
 
@@ -934,8 +928,6 @@ public:
 
     void remove() { if (parent()) parent()->removeChild(this); }
 
-    AnimationController& animation() const;
-
     bool isInert() const;
     bool visibleToHitTestRequest(const HitTestRequest& request) const { return style()->visibility() == VISIBLE && (request.ignorePointerEventsNone() || style()->pointerEvents() != PE_NONE) && !isInert(); }
     bool visibleToHitTesting() const { return style()->visibility() == VISIBLE && style()->pointerEvents() != PE_NONE && !isInert(); }