Remove docked windows entirely in M59.

ash/common/wm/dock/docked_window_resizer.h

-// Copyright (c) 2013 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_DOCK_DOCKED_WINDOW_RESIZER_H_
-#define ASH_COMMON_WM_DOCK_DOCKED_WINDOW_RESIZER_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/common/wm/dock/dock_types.h"
-#include "ash/common/wm/window_resizer.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-
-namespace gfx {
-class Point;
-class Rect;
-}
-
-namespace ash {
-class DockedWindowLayoutManager;
-
-// DockWindowResizer is used by ToplevelWindowEventFilter to handle dragging,
-// moving or resizing of a window while it is docked to the side of a screen.
-class ASH_EXPORT DockedWindowResizer : public WindowResizer {
- public:
-  ~DockedWindowResizer() override;
-
-  // Creates a new DockWindowResizer. The caller takes ownership of the
-  // returned object. The ownership of |next_window_resizer| is taken by the
-  // returned object. Returns NULL if not resizable.
-  static DockedWindowResizer* Create(WindowResizer* next_window_resizer,
-                                     wm::WindowState* window_state);
-
-  // WindowResizer:
-  void Drag(const gfx::Point& location, int event_flags) override;
-  void CompleteDrag() override;
-  void RevertDrag() override;
-
- private:
-  // Creates DockWindowResizer that adds the ability to attach / detach
-  // windows to / from the dock. This object takes ownership of
-  // |next_window_resizer|.
-  DockedWindowResizer(WindowResizer* next_window_resizer,
-                      wm::WindowState* window_state);
-
-  // If the provided window bounds should snap to the side of a screen,
-  // returns the offset that gives the necessary adjustment to snap.
-  void MaybeSnapToEdge(const gfx::Rect& bounds, gfx::Point* offset);
-
-  // Tracks the window's initial position and attachment at the start of a drag
-  // and informs the DockLayoutManager that a drag has started if necessary.
-  // |resizer| can be used to check if the resizer has been deleted during
-  // StartedDragging.
-  void StartedDragging(base::WeakPtr<DockedWindowResizer>& resizer);
-
-  // Informs the DockLayoutManager that the drag is complete if it was informed
-  // of the drag start. |move_result| specifies if the drag was completed or
-  // reverted.
-  void FinishedDragging(aura::client::WindowMoveResult move_result);
-
-  // Reparents dragged window as necessary to the docked container or back to
-  // workspace at the end of the drag. Calculates and returns action taken that
-  // can be reported in UMA stats. |is_resized| reports if the window is merely
-  // being resized rather than repositioned. |attached_panel| is necessary to
-  // avoid docking panels that have been attached to the launcher shelf at the
-  // end of the drag.
-  DockedAction MaybeReparentWindowOnDragCompletion(bool is_resized,
-                                                   bool is_attached_panel);
-
-  gfx::Point last_location_;
-
-  // Wraps a window resizer and adds detaching / reattaching during drags.
-  std::unique_ptr<WindowResizer> next_window_resizer_;
-
-  // Dock container window.
-  DockedWindowLayoutManager* dock_layout_;
-  DockedWindowLayoutManager* initial_dock_layout_;
-
-  // Set to true once Drag() is invoked and the bounds of the window change.
-  bool did_move_or_resize_;
-
-  // Set to true if the window that is being dragged was docked before drag.
-  bool was_docked_;
-
-  // True if the dragged window is docked during the drag.
-  bool is_docked_;
-
-  // True if the dragged window had |bounds_changed_by_user| before the drag.
-  // Cleared whenever the target window gets dragged outside of the docked area.
-  bool was_bounds_changed_by_user_;
-
-  base::WeakPtrFactory<DockedWindowResizer> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(DockedWindowResizer);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_WM_DOCK_DOCKED_WINDOW_RESIZER_H_