fix N_SE-23921. change back button style

Change-Id: Icabc27c0b5da332daf0f5c4fa9ea4a1c1694b998

diff --git a/thread/src/msg-ui-thread-main.c b/thread/src/msg-ui-thread-main.c
index b1efd36..5a4163b 100755 (executable)
--- a/thread/src/msg-ui-thread-main.c
+++ b/thread/src/msg-ui-thread-main.c
@@ -470,7 +470,7 @@ void msg_ui_thread_splitview_launch(PMSG_THREAD_DATA pData, PMSG_THREAD_SPLIT_DA
        /*Push content to navi frame*/
        if (!pSplitData->back_btn)
                pSplitData->back_btn = elm_button_add(pSplitData->navi_frame);
-       elm_object_style_set(pSplitData->back_btn, "naviframe/title/icon/previous");
+       elm_object_style_set(pSplitData->back_btn, "naviframe/back_btn/default");
        evas_object_smart_callback_add(pSplitData->back_btn, "clicked", msg_ui_thread_back_btn_clicked_cb, (void *)pListData);
        evas_object_show(pSplitData->back_btn);