Move ui/gfx/animation/ into its own component.

ui/gfx/animation/animation_delegate.h

Index: ui/gfx/animation/animation_delegate.h
diff --git a/ui/gfx/animation/animation_delegate.h b/ui/gfx/animation/animation_delegate.h
index b1e88d2fdac2f215afbf36f1f4c368a7cbac50cc..5ac2fd4bb1f91fb27d03692d369dd4d01c487705 100644
--- a/ui/gfx/animation/animation_delegate.h
+++ b/ui/gfx/animation/animation_delegate.h
@@ -5,7 +5,7 @@
 #ifndef UI_GFX_ANIMATION_ANIMATION_DELEGATE_H_
 #define UI_GFX_ANIMATION_ANIMATION_DELEGATE_H_
 
-#include "ui/gfx/gfx_export.h"
+#include "ui/gfx/animation/animation_export.h"
 
 namespace gfx {
 
@@ -15,7 +15,7 @@ class Animation;
 //
 //  Implement this interface when you want to receive notifications about the
 //  state of an animation.
-class GFX_EXPORT AnimationDelegate {
+class ANIMATION_EXPORT AnimationDelegate {
  public:
   virtual ~AnimationDelegate() {}