Revert "chromeos: Move files in //ash/common to //ash, part 1"

ash/system/toast/toast_overlay.h

Index: ash/system/toast/toast_overlay.h
diff --git a/ash/system/toast/toast_overlay.h b/ash/system/toast/toast_overlay.h
deleted file mode 100644
index 034eb8801d7dc339dd354808a08cb3c87edd4c7e..0000000000000000000000000000000000000000
--- a/ash/system/toast/toast_overlay.h
+++ /dev/null
@@ -1,79 +0,0 @@
-// 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_SYSTEM_TOAST_TOAST_OVERLAY_H_
-#define ASH_SYSTEM_TOAST_TOAST_OVERLAY_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "base/optional.h"
-#include "base/strings/string16.h"
-#include "ui/compositor/layer_animation_observer.h"
-#include "ui/events/event.h"
-#include "ui/events/event_constants.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace gfx {
-class Rect;
-}
-
-namespace views {
-class Widget;
-}
-
-namespace ash {
-
-class ToastManagerTest;
-class ToastOverlayView;
-class ToastOverlayButton;
-
-class ASH_EXPORT ToastOverlay : public ui::ImplicitAnimationObserver {
- public:
-  class ASH_EXPORT Delegate {
-   public:
-    virtual ~Delegate() {}
-    virtual void OnClosed() = 0;
-  };
-
-  // Creates the Toast overlay UI. |text| is the message to be shown, and
-  // |dismiss_text| is the message for the button to dismiss the toast message.
-  // If |dismiss_text| is null, no dismiss button will be shown. If
-  // |dismiss_text| has a value but the string is empty, the default text is
-  // used.
-  ToastOverlay(Delegate* delegate,
-               const base::string16& text,
-               base::Optional<base::string16> dismiss_text);
-  ~ToastOverlay() override;
-
-  // Shows or hides the overlay.
-  void Show(bool visible);
-
- private:
-  friend class ToastManagerTest;
-
-  // Returns the current bounds of the overlay, which is based on visibility.
-  gfx::Rect CalculateOverlayBounds();
-
-  // ui::ImplicitAnimationObserver:
-  void OnImplicitAnimationsScheduled() override;
-  void OnImplicitAnimationsCompleted() override;
-
-  views::Widget* widget_for_testing();
-  ToastOverlayButton* dismiss_button_for_testing();
-  void ClickDismissButtonForTesting(const ui::Event& event);
-
-  Delegate* const delegate_;
-  const base::string16 text_;
-  const base::Optional<base::string16> dismiss_text_;
-  std::unique_ptr<views::Widget> overlay_widget_;
-  std::unique_ptr<ToastOverlayView> overlay_view_;
-  gfx::Size widget_size_;
-
-  DISALLOW_COPY_AND_ASSIGN(ToastOverlay);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_TOAST_TOAST_OVERLAY_H_