chromeos: Rename ash::WmShelf to Shelf

ash/system/web_notification/web_notification_tray.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/system/web_notification/web_notification_tray.h"
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/resources/vector_icons/vector_icons.h"
 #include "ash/root_window_controller.h"
 #include "ash/session/session_controller.h"
+#include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_constants.h"
-#include "ash/shelf/wm_shelf.h"
 #include "ash/shell.h"
 #include "ash/strings/grit/ash_strings.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/tray_bubble_wrapper.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_container.h"
 #include "ash/system/tray/tray_utils.h"
 #include "ash/system/web_notification/ash_popup_alignment_delegate.h"
@@ skipping 235 matching lines @@
     view_->SetText(str);
     SchedulePaint();
   }
 
  private:
   views::Label* view_;
 
   DISALLOW_COPY_AND_ASSIGN(WebNotificationLabel);
 };
 
-WebNotificationTray::WebNotificationTray(WmShelf* shelf,
+WebNotificationTray::WebNotificationTray(Shelf* shelf,
                                          aura::Window* status_area_window,
                                          SystemTray* system_tray)
     : TrayBackgroundView(shelf),
       status_area_window_(status_area_window),
       system_tray_(system_tray),
       show_message_center_on_unlock_(false),
       should_update_tray_content_(false) {
   DCHECK(shelf);
   DCHECK(status_area_window_);
   DCHECK(system_tray_);
@@ skipping 323 matching lines @@
 
 message_center::MessageCenterBubble*
 WebNotificationTray::GetMessageCenterBubbleForTest() {
   if (!message_center_bubble())
     return nullptr;
   return static_cast<message_center::MessageCenterBubble*>(
       message_center_bubble()->bubble());
 }
 
 }  // namespace ash