AscCommon.AscBrowser.isMobileVersion -> api.isMobileVersion

common/Drawings/DrawingObjectsHandlers.js

@@ -488,7 +488,8 @@ function handleInternalChart(drawing, drawingObjectsController, e, x, y, group,
         }
 
         var chart_titles = drawing.getAllTitles();
-        var bIsMobileVersion = AscCommon.AscBrowser.isMobileVersion;
+        var oApi = editor || Asc.editor;
+        var bIsMobileVersion = oApi && oApi.isMobileVersion;
         for(i = 0; i < chart_titles.length; ++i)
         {
             title = chart_titles[i];