Reland of [ash-md] Fades overview header in and out

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>
 
 #include "ash/ash_export.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
+#include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/compositor/layer_animation_element.h"
 #include "ui/wm/core/window_animations.h"
 #include "ui/wm/public/window_types.h"
 
 namespace display {
 class Display;
 }
 
 namespace gfx {
@@ skipping 88 matching lines @@
   // Returns the visibility requested by this window. IsVisible() takes into
   // account the visibility of the layer and ancestors, where as this tracks
   // whether Show() without a Hide() has been invoked.
   virtual bool GetTargetVisibility() const = 0;
 
   virtual bool IsVisible() const = 0;
 
   virtual void SetOpacity(float opacity) = 0;
   virtual float GetTargetOpacity() const = 0;
 
+  virtual gfx::Rect GetMinimizeAnimationTargetBoundsInScreen() const = 0;
+
   virtual void SetTransform(const gfx::Transform& transform) = 0;
   virtual gfx::Transform GetTargetTransform() const = 0;
 
   virtual bool IsSystemModal() const = 0;
 
   virtual bool GetBoolProperty(WmWindowProperty key) = 0;
+  virtual SkColor GetColorProperty(WmWindowProperty key) = 0;
+  virtual void SetColorProperty(WmWindowProperty key, SkColor value) = 0;
   virtual int GetIntProperty(WmWindowProperty key) = 0;
   virtual void SetIntProperty(WmWindowProperty key, int value) = 0;
 
   // Returns null if there are no details.
   virtual ShelfItemDetails* GetShelfItemDetails() = 0;
   virtual void SetShelfItemDetails(const ShelfItemDetails& details) = 0;
   virtual void ClearShelfItemDetails() = 0;
 
   wm::WindowState* GetWindowState() {
     return const_cast<wm::WindowState*>(
@@ skipping 181 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_