Change function parameter into rvalue referece

Author: seungsoo47

packages/webview_flutter_lwe/tizen/src/message_dispatcher.cc

@@ -9,7 +9,7 @@
 MessageDispatcher::MessageDispatcher() { ecore_init(); }
 MessageDispatcher::~MessageDispatcher() { ecore_shutdown(); }
 
-void MessageDispatcher::dispatchTaskOnMainThread(std::function<void()> fn) {
+void MessageDispatcher::dispatchTaskOnMainThread(std::function<void()>&& fn) {
   ecore_main_loop_thread_safe_call_sync(
       [](void* data) -> void* {
         auto fn = static_cast<std::function<void()>*>(data);

packages/webview_flutter_lwe/tizen/src/message_dispatcher.h

@@ -12,7 +12,7 @@ class MessageDispatcher {
   MessageDispatcher();
   ~MessageDispatcher();
 
-  void dispatchTaskOnMainThread(std::function<void()> fn);
+  void dispatchTaskOnMainThread(std::function<void()>&& fn);
 };
 
 #endif  // FLUTTER_PLUGIN_MESSAGE_DISPATCHER_H_