[mus+ash] Removes WmWindow from ash/wm/window_cycle_*

ash/wm_window.h

Index: ash/wm_window.h
diff --git a/ash/wm_window.h b/ash/wm_window.h
index 6483edd168ddc33c25bbfc7111e915dfcdfc3bf0..c695bad979ec07a8cd69f8aa56fc44aa6d2c3f0f 100644
--- a/ash/wm_window.h
+++ b/ash/wm_window.h
@@ -36,10 +36,6 @@ class EventHandler;
 class Layer;
 }
 
-namespace views {
-class View;
-}
-
 namespace ash {
 
 class ImmersiveFullscreenController;
@@ -311,9 +307,6 @@ class ASH_EXPORT WmWindow : public aura::WindowObserver,
   // Makes the hit region for children slightly larger for easier resizing.
   void SetChildrenUseExtendedHitRegion();
 
-  // Returns a View that renders the contents of this window's layers.
-  std::unique_ptr<views::View> CreateViewWithRecreatedLayers();
-
   void AddTransientWindowObserver(WmTransientWindowObserver* observer);
   void RemoveTransientWindowObserver(WmTransientWindowObserver* observer);