mash: Migrate shelf app list button to wm common types

chrome/browser/ui/ash/launcher/extension_launcher_context_menu.cc

Index: chrome/browser/ui/ash/launcher/extension_launcher_context_menu.cc
diff --git a/chrome/browser/ui/ash/launcher/extension_launcher_context_menu.cc b/chrome/browser/ui/ash/launcher/extension_launcher_context_menu.cc
index a68146726f4aa965ac211a1ff4c8aa8c7d0657cf..e7d4f16b76b3f9d9ddfd3603254e99eb2c5e2de1 100644
--- a/chrome/browser/ui/ash/launcher/extension_launcher_context_menu.cc
+++ b/chrome/browser/ui/ash/launcher/extension_launcher_context_menu.cc
@@ -5,7 +5,7 @@
 #include "chrome/browser/ui/ash/launcher/extension_launcher_context_menu.h"
 
 #include "ash/common/shelf/shelf_item_delegate.h"
-#include "ash/shell.h"
+#include "ash/common/wm_shell.h"
 #include "base/bind.h"
 #include "chrome/browser/extensions/context_menu_matcher.h"
 #include "chrome/browser/extensions/extension_util.h"
@@ -82,7 +82,7 @@ void ExtensionLauncherContextMenu::Init() {
                           IDS_APP_LIST_NEW_INCOGNITO_WINDOW);
     }
     if (!BrowserShortcutLauncherItemController(
-             controller(), ash::Shell::GetInstance()->shelf_model())
+             controller(), ash::WmShell::Get()->shelf_model())
              .IsListOfActiveBrowserEmpty()) {
       AddItem(MENU_CLOSE,
               l10n_util::GetStringUTF16(IDS_LAUNCHER_CONTEXT_MENU_CLOSE));