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

ui/gfx/animation/animation_container.h

Index: ui/gfx/animation/animation_container.h
diff --git a/ui/gfx/animation/animation_container.h b/ui/gfx/animation/animation_container.h
index 459773876d9dae7a44d02599f789a93ff2012741..a19c0539d2f68c5dfa9357b49255b071ad4d0c34 100644
--- a/ui/gfx/animation/animation_container.h
+++ b/ui/gfx/animation/animation_container.h
@@ -11,7 +11,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
-#include "ui/gfx/gfx_export.h"
+#include "ui/gfx/animation/animation_export.h"
 
 namespace gfx {
 
@@ -26,7 +26,7 @@ class AnimationContainerObserver;
 //
 // AnimationContainer is ref counted. Each Animation contained within the
 // AnimationContainer own it.
-class GFX_EXPORT AnimationContainer
+class ANIMATION_EXPORT AnimationContainer
     : public base::RefCounted<AnimationContainer> {
  public:
   AnimationContainer();