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

chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc

 // Copyright 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/constrained_web_dialog_delegate_base.h"
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
@@ skipping 109 matching lines @@
                               dialog_size.width(),
                               dialog_size.height());
 
   gtk_widget_show_all(contents);
 
   g_signal_connect(contents, "destroy", G_CALLBACK(OnDestroyThunk), this);
 }
 
 void ConstrainedWebDialogDelegateViewGtk::OnDestroy(GtkWidget* widget) {
   if (!impl_->closed_via_webui())
-    GetWebDialogDelegate()->OnDialogClosed("");
+    GetWebDialogDelegate()->OnDialogClosed(std::string());
   delete this;
 }
 
 ConstrainedWebDialogDelegate* CreateConstrainedWebDialog(
       content::BrowserContext* browser_context,
       WebDialogDelegate* delegate,
       WebDialogWebContentsDelegate* tab_delegate,
       content::WebContents* web_contents) {
   ConstrainedWebDialogDelegateViewGtk* constrained_delegate =
       new ConstrainedWebDialogDelegateViewGtk(
           browser_context, delegate, tab_delegate);
   GtkWidget* window =
       CreateWebContentsModalDialogGtk(
           constrained_delegate->GetWebContents()->GetView()->GetNativeView(),
           constrained_delegate->GetWebContents()->GetView()->
               GetContentNativeView());
   SetBackgroundColor(window, ui::kGdkWhite);
   constrained_delegate->SetWindow(window);
 
   WebContentsModalDialogManager* web_contents_modal_dialog_manager =
       WebContentsModalDialogManager::FromWebContents(web_contents);
   web_contents_modal_dialog_manager->ShowDialog(window);
 
   return constrained_delegate;
 }