mash: Partially migrate WorkspaceController to ash common.

ash/wm/window_animations.h

Index: ash/wm/window_animations.h
diff --git a/ash/wm/window_animations.h b/ash/wm/window_animations.h
index 58fe5150276e50ed761991eca1808c985b59ea29..e30993a4f9cfaa753c0014c84c329b2024c683f7 100644
--- a/ash/wm/window_animations.h
+++ b/ash/wm/window_animations.h
@@ -9,7 +9,6 @@
 
 #include "ash/ash_export.h"
 #include "ui/gfx/animation/tween.h"
-#include "ui/gfx/transform.h"
 #include "ui/wm/core/window_animations.h"
 
 namespace aura {
@@ -17,7 +16,6 @@ class Window;
 }
 
 namespace ui {
-class Layer;
 class LayerTreeOwner;
 }
 
@@ -25,13 +23,6 @@ class LayerTreeOwner;
 // with desktop Chrome, see ui/views/corewm/window_animations.h.
 namespace ash {
 
-// Direction for ash-specific window animations used in workspaces and
-// lock/unlock animations.
-enum LayerScaleAnimationDirection {
-  LAYER_SCALE_ANIMATION_ABOVE,
-  LAYER_SCALE_ANIMATION_BELOW,
-};
-
 // Amount of time for the cross fade animation.
 extern const int kCrossFadeDurationMS;
 
@@ -54,11 +45,6 @@ ASH_EXPORT std::vector<ui::LayerAnimationSequence*>
 CreateBrightnessGrayscaleAnimationSequence(float target_value,
                                            base::TimeDelta duration);
 
-// Applies scale related to the specified AshWindowScaleType.
-ASH_EXPORT void SetTransformForScaleAnimation(
-    ui::Layer* layer,
-    LayerScaleAnimationDirection type);
-
 // Returns the approximate bounds to which |window| will be animated when it
 // is minimized. The bounds are approximate because the minimize animation
 // involves rotation.