convert some XubString to OUString in Application

Change-Id: Ieed48339e9fc01796674691d5b0580a36df6e63e

include/vcl/svapp.hxx

@@ -232,8 +232,8 @@ public:
     static Window*              GetTopWindow( long nIndex );
     static Window*              GetActiveTopWindow();
 
-    static void                 SetAppName( const String& rUniqueName );
-    static String               GetAppName();
+    static void                 SetAppName( const OUString& rUniqueName );
+    static OUString             GetAppName();
     static bool                 LoadBrandBitmap (const char* pName, BitmapEx &rBitmap);
 
     // default name of the application for message dialogs and printing

vcl/inc/svdata.hxx

@@ -116,7 +116,7 @@ struct ImplSVAppData
     VclEventListeners*      mpEventListeners;   // listeners for vcl events (eg, extended toolkit)
     VclEventListeners*      mpKeyListeners;     // listeners for key events only (eg, extended toolkit)
     ImplAccelManager*       mpAccelMgr;         // Accelerator Manager
-    XubString*              mpAppName;          // Application name
+    OUString*               mpAppName;          // Application name
     OUString*               mpAppFileName;      // Abs. Application FileName
     OUString*               mpDisplayName;      // Application Display Name
     String*                 mpFontPath;         // Additional Fontpath

vcl/source/app/svapp.cxx

@@ -1225,20 +1225,20 @@ Window* Application::GetActiveTopWindow()
 
 // -----------------------------------------------------------------------
 
-void Application::SetAppName( const XubString& rUniqueName )
+void Application::SetAppName( const OUString& rUniqueName )
 {
     ImplSVData* pSVData = ImplGetSVData();
 
     // create if does not exist
     if ( !pSVData->maAppData.mpAppName )
-        pSVData->maAppData.mpAppName = new XubString( rUniqueName );
+        pSVData->maAppData.mpAppName = new OUString( rUniqueName );
     else
         *(pSVData->maAppData.mpAppName) = rUniqueName;
 }
 
 // -----------------------------------------------------------------------
 
-XubString Application::GetAppName()
+OUString Application::GetAppName()
 {
     ImplSVData* pSVData = ImplGetSVData();
     if ( pSVData->maAppData.mpAppName )
@@ -1270,7 +1270,7 @@ OUString Application::GetDisplayName()
     else if ( pSVData->maWinData.mpAppWin )
         return pSVData->maWinData.mpAppWin->GetText();
     else
-        return ImplGetSVEmptyStr();
+        return OUString("");
 }
 
 // -----------------------------------------------------------------------