Remove docked windows entirely in M59.

ash/common/wm/wm_types.h

 // Copyright 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_WM_TYPES_H_
 #define ASH_COMMON_WM_WM_TYPES_H_
 
 #include "ash/ash_export.h"
 #include "ui/base/ui_base_types.h"
 
 namespace ash {
 namespace wm {
 
 // This enum defines both common show state copied from
 // ui::WindowShowState as well as new states introduced in ash.
 // The separate enum is defined here because we don't want to leak
 // these type to ui/base until they're stable and we know for sure
 // that they'll persist over time.
 enum WindowStateType {
   // Common state
   WINDOW_STATE_TYPE_DEFAULT = 0,
 
   // Normal represents a state where the position/size has been
   // specified by a use.
   WINDOW_STATE_TYPE_NORMAL,
   WINDOW_STATE_TYPE_MINIMIZED,
   WINDOW_STATE_TYPE_MAXIMIZED,
   WINDOW_STATE_TYPE_INACTIVE,
   WINDOW_STATE_TYPE_FULLSCREEN,
-  WINDOW_STATE_TYPE_DOCKED,
   WINDOW_STATE_TYPE_END,  // to avoid using SHOW_STATE_END
 
   // Ash specific states:
 
   WINDOW_STATE_TYPE_LEFT_SNAPPED,
   WINDOW_STATE_TYPE_RIGHT_SNAPPED,
 
-  WINDOW_STATE_TYPE_DOCKED_MINIMIZED,
-
   // A window is in this state when it is automatically placed and
   // sized by the window manager. (it's newly opened, or pushed to the side
   // due to new window, for example).
   WINDOW_STATE_TYPE_AUTO_POSITIONED,
 
   // A window is pinned on top of other windows with fullscreenized.
   // Corresponding shelf should be hidden, also most of windows other than the
   // pinned one should be hidden.
   WINDOW_STATE_TYPE_PINNED,
   WINDOW_STATE_TYPE_TRUSTED_PINNED,
 };
 
 // Utility functions to convert WindowStateType <-> ui::WindowShowState.
 // Note: LEFT/RIGHT MAXIMIZED, AUTO_POSITIONED type will be lost when
 // converting to ui::WindowShowState.
 ASH_EXPORT WindowStateType ToWindowStateType(ui::WindowShowState state);
 ASH_EXPORT ui::WindowShowState ToWindowShowState(WindowStateType type);
 
 // Returns true if |type| is WINDOW_STATE_TYPE_MAXIMIZED,
 // WINDOW_STATE_TYPE_FULLSCREEN or WINDOW_STATE_TYPE_PINNED.
 ASH_EXPORT bool IsMaximizedOrFullscreenOrPinnedWindowStateType(
     WindowStateType type);
 
 }  // namespace wm
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_WM_TYPES_H_