Handle UNPIN operation in ash.

ash/accelerators/accelerator_table.h

 // Copyright (c) 2012 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_ACCELERATORS_ACCELERATOR_TABLE_H_
 #define ASH_ACCELERATORS_ACCELERATOR_TABLE_H_
 
 #include <stddef.h>
 
 #include "ash/ash_export.h"
@@ skipping 88 matching lines @@
   SHOW_SYSTEM_TRAY_BUBBLE,
   SHOW_TASK_MANAGER,
   SWITCH_IME,  // Switch to another IME depending on the accelerator.
   TAKE_WINDOW_SCREENSHOT,
   TAKE_PARTIAL_SCREENSHOT,
   TAKE_SCREENSHOT,
   TOGGLE_APP_LIST,
   TOGGLE_FULLSCREEN,
   TOGGLE_MAXIMIZED,
   TOGGLE_OVERVIEW,
+  UNPIN,
   WINDOW_MINIMIZE,
   WINDOW_POSITION_CENTER,
   WINDOW_CYCLE_SNAP_DOCK_LEFT,
   WINDOW_CYCLE_SNAP_DOCK_RIGHT,
 #if defined(OS_CHROMEOS)
   BRIGHTNESS_DOWN,
   BRIGHTNESS_UP,
   DEBUG_ADD_REMOVE_DISPLAY,
   DEBUG_TOGGLE_TOUCH_PAD,
   DEBUG_TOGGLE_TOUCH_SCREEN,
@@ skipping 128 matching lines @@
 ASH_EXPORT extern const AcceleratorAction kActionsKeepingMenuOpen[];
 ASH_EXPORT extern const size_t kActionsKeepingMenuOpenLength;
 
 // Actions that can be performed in pinned mode.
 ASH_EXPORT extern const AcceleratorAction kActionsAllowedInPinnedMode[];
 ASH_EXPORT extern const size_t kActionsAllowedInPinnedModeLength;
 
 }  // namespace ash
 
 #endif  // ASH_ACCELERATORS_ACCELERATOR_TABLE_H_