Rewrite std::string("") to std::string(), Linux edition.

chrome/browser/ui/webui/print_preview/print_preview_ui.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 
 #include <map>
 
 #include "base/id_map.h"
 #include "base/lazy_instance.h"
@@ skipping 553 matching lines @@
   OnClosePrintPreviewDialog();
 }
 
 void PrintPreviewUI::OnClosePrintPreviewDialog() {
   if (dialog_closed_)
     return;
   dialog_closed_ = true;
   ConstrainedWebDialogDelegate* delegate = GetConstrainedDelegate();
   if (!delegate)
     return;
-  delegate->GetWebDialogDelegate()->OnDialogClosed("");
+  delegate->GetWebDialogDelegate()->OnDialogClosed(std::string());
   delegate->OnDialogCloseFromWebUI();
 }
 
 void PrintPreviewUI::OnReloadPrintersList() {
   web_ui()->CallJavascriptFunction("reloadPrintersList");
 }
 
 void PrintPreviewUI::OnPrintPreviewScalingDisabled() {
   web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
 }