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

chrome/browser/extensions/api/extension_action/script_badge_apitest.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/extensions/browser_event_router.h"
 #include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/extensions/extension_action_manager.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
@@ skipping 70 matching lines @@
         browser()->profile())->extension_service();
     service->browser_event_router()->ScriptBadgeExecuted(
         browser()->profile(), *script_badge, tab_id);
     EXPECT_TRUE(catcher.GetNextResult());
   }
 
   {
     ResultCatcher catcher;
     // Visit a non-extension page so the extension can run a content script and
     // cause the script badge to be animated in.
-    ui_test_utils::NavigateToURL(browser(), test_server()->GetURL(""));
+    ui_test_utils::NavigateToURL(browser(),
+                                 test_server()->GetURL(std::string()));
     ASSERT_TRUE(catcher.GetNextResult());
   }
   EXPECT_TRUE(script_badge->GetIsVisible(tab_id));
   EXPECT_THAT(location_bar_controller->GetCurrentActions(),
               testing::ElementsAre(script_badge));
 }
 
 }  // namespace
 }  // namespace extensions