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

chrome/browser/referrer_policy_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 "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_browsertest_util.h"
@@ skipping 358 matching lines @@
 
 // Tests history navigation actions: Navigate from A to B with a referrer
 // policy, then navigate to C, back to B, and reload.
 IN_PROC_BROWSER_TEST_F(ReferrerPolicyTest, History) {
   // Navigate from A to B.
   GURL start_url = RunReferrerTest("origin", true, false, true, false,
                                    WebKit::WebMouseEvent::ButtonLeft,
                                    EXPECT_ORIGIN_AS_REFERRER);
 
   // Navigate to C.
-  ui_test_utils::NavigateToURL(browser(), test_server_->GetURL(""));
+  ui_test_utils::NavigateToURL(browser(), test_server_->GetURL(std::string()));
 
   string16 expected_title =
       GetExpectedTitle(start_url, EXPECT_ORIGIN_AS_REFERRER);
   content::WebContents* tab =
       browser()->tab_strip_model()->GetActiveWebContents();
   scoped_ptr<content::TitleWatcher> title_watcher(
       new content::TitleWatcher(tab, expected_title));
 
   // Watch for all possible outcomes to avoid timeouts if something breaks.
   AddAllPossibleTitles(start_url, title_watcher.get());
 
   // Go back to B.
   chrome::GoBack(browser(), CURRENT_TAB);
   EXPECT_EQ(expected_title, title_watcher->WaitAndGetTitle());
 
   title_watcher.reset(new content::TitleWatcher(tab, expected_title));
   AddAllPossibleTitles(start_url, title_watcher.get());
 
   // Reload to B.
   chrome::Reload(browser(), CURRENT_TAB);
   EXPECT_EQ(expected_title, title_watcher->WaitAndGetTitle());
 
   title_watcher.reset(new content::TitleWatcher(tab, expected_title));
   AddAllPossibleTitles(start_url, title_watcher.get());
 
   // Shift-reload to B.
   chrome::ReloadIgnoringCache(browser(), CURRENT_TAB);
   EXPECT_EQ(expected_title, title_watcher->WaitAndGetTitle());
 }