ash: Remove ash::Shelf in favor of ash::WmShelf

ash/display/window_tree_host_manager_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/display/window_tree_host_manager.h"
 
 #include <memory>
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/material_design/material_design_controller.h"
-#include "ash/common/shelf/shelf.h"
 #include "ash/common/shelf/shelf_widget.h"
+#include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
 #include "ash/common/wm/wm_screen_util.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/display_util.h"
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/test/ash_md_test_base.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/ash_test_helper.h"
@@ skipping 787 matching lines @@
   display_manager->SetLayoutForCurrentDisplays(
       test::CreateDisplayLayout(display::DisplayPlacement::RIGHT, 50));
 
   EXPECT_NE(primary_display.id(), secondary_display.id());
   aura::Window* primary_root =
       window_tree_host_manager->GetRootWindowForDisplayId(primary_display.id());
   aura::Window* secondary_root =
       window_tree_host_manager->GetRootWindowForDisplayId(
           secondary_display.id());
   aura::Window* shelf_window =
-      Shelf::ForPrimaryDisplay()->shelf_widget()->GetNativeView();
+      GetPrimaryShelf()->shelf_widget()->GetNativeView();
   EXPECT_TRUE(primary_root->Contains(shelf_window));
   EXPECT_FALSE(secondary_root->Contains(shelf_window));
   EXPECT_NE(primary_root, secondary_root);
   EXPECT_EQ(primary_display.id(),
             display::Screen::GetScreen()
                 ->GetDisplayNearestPoint(gfx::Point(-100, -100))
                 .id());
   EXPECT_EQ(
       primary_display.id(),
       display::Screen::GetScreen()->GetDisplayNearestWindow(nullptr).id());
@@ skipping 699 matching lines @@
       widget->GetNativeWindow()->GetRootWindow());
   event_generator.MoveMouseToCenterOf(widget->GetNativeWindow());
 
   UpdateDisplay("300x300");
   watcher.Stop();
 
   widget->CloseNow();
 }
 
 }  // namespace ash