chromeos: Rename ash::WmShelf to Shelf

ash/first_run/first_run_helper_impl.cc

 // 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.
 
 #include "ash/first_run/first_run_helper_impl.h"
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shelf/app_list_button.h"
+#include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_widget.h"
-#include "ash/shelf/wm_shelf.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/wm_window.h"
 #include "base/logging.h"
 #include "ui/app_list/views/app_list_view.h"
 #include "ui/aura/window.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/views/view.h"
@@ skipping 27 matching lines @@
   if (IsTrayBubbleOpened())
     CloseTrayBubble();
   widget_->Close();
 }
 
 views::Widget* FirstRunHelperImpl::GetOverlayWidget() {
   return widget_;
 }
 
 gfx::Rect FirstRunHelperImpl::GetAppListButtonBounds() {
-  WmShelf* shelf = WmShelf::ForWindow(Shell::GetPrimaryRootWindow());
+  Shelf* shelf = Shelf::ForWindow(Shell::GetPrimaryRootWindow());
   AppListButton* app_button = shelf->shelf_widget()->GetAppListButton();
   return app_button->GetBoundsInScreen();
 }
 
 void FirstRunHelperImpl::Cancel() {
   for (auto& observer : observers())
     observer.OnCancelled();
 }
 
 bool FirstRunHelperImpl::IsCancelingKeyEvent(ui::KeyEvent* event) {
@@ skipping 26 matching lines @@
   return bubble->GetBoundsInScreen();
 }
 
 gfx::Rect FirstRunHelperImpl::GetHelpButtonBounds() {
   SystemTray* tray = Shell::Get()->GetPrimarySystemTray();
   views::View* help_button = tray->GetHelpButtonView();
   return help_button->GetBoundsInScreen();
 }
 
 }  // namespace ash