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

chrome/browser/translate/translate_manager_browsertest.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 <algorithm>
 #include <set>
 #include <vector>
 
 #include "base/json/json_writer.h"
@@ skipping 520 matching lines @@
 
   // Let's run the same steps again but this time the server fails to detect the
   // page's language (it returns an empty string).
   SimulateNavigation(GURL("http://www.google.com"), "und", true);
   menu.reset(TestRenderViewContextMenu::CreateContextMenu(web_contents()));
   menu->Init();
   menu->ExecuteCommand(IDC_CONTENT_CONTEXT_TRANSLATE, 0);
   RenderViewHostTester::TestOnMessageReceived(
       rvh(),
       ChromeViewHostMsg_PageTranslated(
-          2, 0, "", "en", TranslateErrors::UNKNOWN_LANGUAGE));
+          2, 0, std::string(), "en", TranslateErrors::UNKNOWN_LANGUAGE));
   infobar = GetTranslateInfoBar();
   ASSERT_TRUE(infobar != NULL);
   EXPECT_EQ(TranslateInfoBarDelegate::TRANSLATION_ERROR,
             infobar->infobar_type());
   EXPECT_EQ(TranslateErrors::UNKNOWN_LANGUAGE, infobar->error_type());
 }
 
 // Tests that we show/don't show an info-bar for all languages the CLD can
 // report.
 TEST_F(TranslateManagerBrowserTest, TestAllLanguages) {
@@ skipping 964 matching lines @@
 IN_PROC_BROWSER_TEST_F(InProcessBrowserTest, MAYBE_TranslateSessionRestore) {
   WebContents* current_web_contents =
       browser()->tab_strip_model()->GetActiveWebContents();
   content::Source<WebContents> source(current_web_contents);
 
   ui_test_utils::WindowedNotificationObserverWithDetails<std::string>
       fr_language_detected_signal(chrome::NOTIFICATION_TAB_LANGUAGE_DETERMINED,
                                   source);
   fr_language_detected_signal.Wait();
 }