Refactors DimWindow and moves to ash/common

ash/common/wm_window.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_COMMON_WM_WINDOW_H_
 #define ASH_COMMON_WM_WINDOW_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 46 matching lines @@
 class ASH_EXPORT WmWindow {
  public:
   // See comments in SetBoundsInScreen().
   enum class BoundsInScreenBehavior {
     USE_LOCAL_COORDINATES,
     USE_SCREEN_COORDINATES,
   };
 
   using Windows = std::vector<WmWindow*>;
 
+  virtual void Destroy() = 0;
+
   WmWindow* GetRootWindow() {
     return const_cast<WmWindow*>(
         const_cast<const WmWindow*>(this)->GetRootWindow());
   }
   virtual const WmWindow* GetRootWindow() const = 0;
   virtual WmRootWindowController* GetRootWindowController() = 0;
 
   // TODO(sky): fix constness.
   virtual WmShell* GetShell() const = 0;
 
@@ skipping 77 matching lines @@
     return const_cast<WmWindow*>(
         const_cast<const WmWindow*>(this)->GetTransientParent());
   }
   virtual const WmWindow* GetTransientParent() const = 0;
   virtual Windows GetTransientChildren() = 0;
 
   virtual void SetLayoutManager(
       std::unique_ptr<WmLayoutManager> layout_manager) = 0;
   virtual WmLayoutManager* GetLayoutManager() = 0;
 
+  // See wm::SetWindowVisibilityChangesAnimated() for details on what this
+  // does.
+  virtual void SetVisibilityChangesAnimated() = 0;
   // |type| is WindowVisibilityAnimationType. Has to be an int to match aura.
   virtual void SetVisibilityAnimationType(int type) = 0;
   virtual void SetVisibilityAnimationDuration(base::TimeDelta delta) = 0;
   virtual void SetVisibilityAnimationTransition(
       ::wm::WindowVisibilityAnimationTransition transition) = 0;
   virtual void Animate(::wm::WindowAnimationType type) = 0;
   virtual void StopAnimatingProperty(
       ui::LayerAnimationElement::AnimatableProperty property) = 0;
   virtual void SetChildWindowVisibilityChangesAnimated() = 0;
 
@@ skipping 140 matching lines @@
   virtual void AddLimitedPreTargetHandler(ui::EventHandler* handler) = 0;
   virtual void RemoveLimitedPreTargetHandler(ui::EventHandler* handler) = 0;
 
  protected:
   virtual ~WmWindow() {}
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_WINDOW_H_