Remove docked windows entirely in M59.

ash/shell_unittest.cc

 // 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.
 
 #include "ash/shell.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf_layout_manager.h"
 #include "ash/common/shelf/shelf_widget.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/wallpaper/wallpaper_widget_controller.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/display/mouse_cursor_event_filter.h"
 #include "ash/drag_drop/drag_drop_controller.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/root_window_controller.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/shell_test_api.h"
 #include "ash/wm/window_util.h"
+#include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/events/test/events_test_utils.h"
 #include "ui/events/test/test_event_handler.h"
@@ skipping 15 matching lines @@
                              kShellWindowId_DefaultContainer);
 }
 
 aura::Window* GetAlwaysOnTopContainer() {
   return Shell::GetContainer(Shell::GetPrimaryRootWindow(),
                              kShellWindowId_AlwaysOnTopContainer);
 }
 
 // Expect ALL the containers!
 void ExpectAllContainers() {
+  // Validate no duplicate container IDs.
+  const size_t all_shell_container_ids_size = arraysize(kAllShellContainerIds);
+  std::set<int32_t> container_ids;
+  for (size_t i = 0; i < all_shell_container_ids_size; ++i)
+    EXPECT_TRUE(container_ids.insert(kAllShellContainerIds[i]).second);
+
   aura::Window* root_window = Shell::GetPrimaryRootWindow();
   EXPECT_TRUE(
       Shell::GetContainer(root_window, kShellWindowId_WallpaperContainer));
   EXPECT_TRUE(
       Shell::GetContainer(root_window, kShellWindowId_DefaultContainer));
   EXPECT_TRUE(
       Shell::GetContainer(root_window, kShellWindowId_AlwaysOnTopContainer));
   EXPECT_TRUE(Shell::GetContainer(root_window, kShellWindowId_PanelContainer));
   EXPECT_TRUE(Shell::GetContainer(root_window, kShellWindowId_ShelfContainer));
   EXPECT_TRUE(
@@ skipping 443 matching lines @@
   // the case with classic-ash where embedders can separately create
   // aura::Windows.
   if (WmShell::Get()->IsRunningInMash())
     return;
 
   window_.reset(new aura::Window(NULL));
   window_->Init(ui::LAYER_NOT_DRAWN);
 }
 
 }  // namespace ash