convert sd/.../MasterPageDescriptor.hxx from String to OUString

Change-Id: I4bb95e075c1946efd3f81aee044170ec2baabc7f

sd/source/ui/toolpanel/controls/MasterPageDescriptor.cxx

@@ -32,9 +32,9 @@ namespace sd { namespace toolpanel { namespace controls {
 MasterPageDescriptor::MasterPageDescriptor (
     MasterPageContainer::Origin eOrigin,
     const sal_Int32 nTemplateIndex,
-    const String& rsURL,
-    const String& rsPageName,
-    const String& rsStyleName,
+    const OUString& rsURL,
+    const OUString& rsPageName,
+    const OUString& rsStyleName,
     const bool bIsPrecious,
     const ::boost::shared_ptr<PageObjectProvider>& rpPageObjectProvider,
     const ::boost::shared_ptr<PreviewProvider>& rpPreviewProvider)

sd/source/ui/toolpanel/controls/MasterPageDescriptor.hxx

@@ -40,9 +40,9 @@ public:
     MasterPageDescriptor (
         MasterPageContainer::Origin eOrigin,
         const sal_Int32 nTemplateIndex,
-        const String& rURL,
-        const String& rPageName,
-        const String& rStyleName,
+        const OUString& rURL,
+        const OUString& rPageName,
+        const OUString& rStyleName,
         const bool bIsPrecious,
         const ::boost::shared_ptr<PageObjectProvider>& rpPageObjectProvider,
         const ::boost::shared_ptr<PreviewProvider>& rpPreviewProvider);