ui: Move compositor/ directory out of gfx/, up to ui/.

ui/compositor/layer_animation_observer.h

Index: ui/compositor/layer_animation_observer.h
diff --git a/ui/gfx/compositor/layer_animation_observer.h b/ui/compositor/layer_animation_observer.h
similarity index 94%
rename from ui/gfx/compositor/layer_animation_observer.h
rename to ui/compositor/layer_animation_observer.h
index 8b0df8ef2867f200a7df7c88e3205a4728339313..abc81550112e68f9fbd2e0195a04c5dd94404cd7 100644
--- a/ui/gfx/compositor/layer_animation_observer.h
+++ b/ui/compositor/layer_animation_observer.h
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_GFX_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
-#define UI_GFX_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
+#ifndef UI_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
+#define UI_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
 #pragma once
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "ui/gfx/compositor/compositor_export.h"
+#include "ui/compositor/compositor_export.h"
 
 namespace ui {
 
@@ -116,4 +116,4 @@ class COMPOSITOR_EXPORT ImplicitAnimationObserver
 
 }  // namespace ui
 
-#endif  // UI_GFX_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
+#endif  // UI_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_