[NUI] make viewStyle field private (#1680)

Fixes CA1051

diff --git a/src/Tizen.NUI/src/public/BaseComponents/View.cs b/src/Tizen.NUI/src/public/BaseComponents/View.cs
index 50f69f7..3f03b17 100755 (executable)
--- a/src/Tizen.NUI/src/public/BaseComponents/View.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/View.cs
@@ -69,8 +69,7 @@ namespace Tizen.NUI.BaseComponents
         /// <summary>
         /// The Style instance binded with this View.
         /// </summary>
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        protected ViewStyle viewStyle;
+        private ViewStyle viewStyle;
 
         /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
         [EditorBrowsable(EditorBrowsableState.Never)]