Remove docked windows entirely in M59.

ash/public/cpp/shell_window_ids.cc

 // 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.
 
 #include "ash/public/cpp/shell_window_ids.h"
 
 #include "base/macros.h"
 
 namespace ash {
 
 // NOTE: this list is ordered by activation order. That is, windows in
 // containers appearing earlier in the list are activated before windows in
 // containers appearing later in the list.
 const int32_t kActivatableShellWindowIds[] = {
     kShellWindowId_OverlayContainer, kShellWindowId_LockSystemModalContainer,
     kShellWindowId_SettingBubbleContainer, kShellWindowId_LockScreenContainer,
     kShellWindowId_SystemModalContainer, kShellWindowId_AlwaysOnTopContainer,
     kShellWindowId_AppListContainer, kShellWindowId_DefaultContainer,
 
-    // Docked, panel, launcher and status are intentionally checked after other
+    // Panel, launcher and status are intentionally checked after other
     // containers even though these layers are higher. The user expects their
     // windows to be focused before these elements.
-    kShellWindowId_DockedContainer, kShellWindowId_PanelContainer,
-    kShellWindowId_ShelfContainer, kShellWindowId_StatusContainer,
+    kShellWindowId_PanelContainer, kShellWindowId_ShelfContainer,
+    kShellWindowId_StatusContainer,
 };
 
 const size_t kNumActivatableShellWindowIds =
     arraysize(kActivatableShellWindowIds);
 
 bool IsActivatableShellWindowId(int32_t id) {
   for (size_t i = 0; i < kNumActivatableShellWindowIds; i++) {
     if (id == kActivatableShellWindowIds[i])
       return true;
   }
   return false;
 }
 
 }  // namespace ash