[aura-mus] Add ui::CursorData, with mojo serialization.

services/ui/ws/drag_controller.cc

 // Copyright 2016 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 "services/ui/ws/drag_controller.h"
 
 #include <utility>
 
 #include "base/logging.h"
-#include "services/ui/public/interfaces/cursor.mojom.h"
+#include "services/ui/public/interfaces/cursor/cursor.mojom.h"
 #include "services/ui/ws/drag_cursor_updater.h"
 #include "services/ui/ws/drag_source.h"
 #include "services/ui/ws/drag_target_connection.h"
 #include "services/ui/ws/event_dispatcher.h"
 #include "services/ui/ws/server_window.h"
 
 namespace ui {
 namespace ws {
 
 struct DragController::Operation {
@@ skipping 336 matching lines @@
       return "LEAVE";
     case OperationType::DROP:
       return "DROP";
   }
   NOTREACHED();
   return std::string();
 }
 
 }  // namespace ws
 }  // namespace ui