Revert 139494 - ash: Improved window maximize/restore animations

ash/wm/window_animations.h

Index: ash/wm/window_animations.h
===================================================================
--- ash/wm/window_animations.h	(revision 139956)
+++ ash/wm/window_animations.h	(working copy)
@@ -7,16 +7,12 @@
 #pragma once
 
 #include "ash/ash_export.h"
+#include "base/time.h"
 
 namespace aura {
 class Window;
 }
-namespace base {
-class TimeDelta;
-}
-namespace gfx {
-class Rect;
-}
+
 namespace ui {
 class ImplicitAnimationObserver;
 }
@@ -76,10 +72,6 @@
 
 namespace internal {
 
-// Animate a cross-fade of |window| from its current bounds to |new_bounds|.
-ASH_EXPORT void CrossFadeToBounds(aura::Window* window,
-                                  const gfx::Rect& new_bounds);
-
 // Returns false if the |window| didn't animate.
 ASH_EXPORT bool AnimateOnChildWindowVisibilityChanged(
     aura::Window* window, bool visible);