mash: Port mojo:ash_sysui's ContextMenuMus to mojo:ash.

ash/sysui/sysui_application.cc

Index: ash/sysui/sysui_application.cc
diff --git a/ash/sysui/sysui_application.cc b/ash/sysui/sysui_application.cc
index f71f8d334364af8f43dafbcaad777135e5b17644..f69e5063e44f2d9edf6ccb4675a416aaceab79e2 100644
--- a/ash/sysui/sysui_application.cc
+++ b/ash/sysui/sysui_application.cc
@@ -26,7 +26,7 @@
 #include "ash/sysui/shelf_delegate_mus.h"
 #include "ash/sysui/shell_delegate_mus.h"
 #include "ash/sysui/stub_context_factory.h"
-#include "ash/sysui/user_wallpaper_delegate_mus.h"
+#include "ash/sysui/wallpaper_delegate_mus.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
@@ -341,8 +341,7 @@ void SysUIApplication::Create(
 void SysUIApplication::Create(const ::shell::Identity& remote_identity,
                               mojom::WallpaperControllerRequest request) {
   mojom::WallpaperController* wallpaper_controller =
-      static_cast<UserWallpaperDelegateMus*>(
-          Shell::GetInstance()->user_wallpaper_delegate());
+      static_cast<WallpaperDelegateMus*>(WmShell::Get()->wallpaper_delegate());
   wallpaper_controller_bindings_.AddBinding(wallpaper_controller,
                                             std::move(request));
 }