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

chrome/browser/ui/browser_tab_contents.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/browser_tab_contents.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
@@ skipping 154 matching lines @@
   printing::PrintPreviewMessageHandler::CreateForWebContents(web_contents);
   printing::PrintViewManager::CreateForWebContents(web_contents);
 #endif
 
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
   // If this is not an incognito window, setup to handle one-click login.
   // We don't want to check that the profile is already connected at this time
   // because the connected state may change while this tab is open.  Having a
   // one-click signin helper attached does not cause problems if the profile
   // happens to be already connected.
-  if (OneClickSigninHelper::CanOffer(
-          web_contents, OneClickSigninHelper::CAN_OFFER_FOR_ALL, "", NULL)) {
+  if (OneClickSigninHelper::CanOffer(web_contents,
+                                     OneClickSigninHelper::CAN_OFFER_FOR_ALL,
+                                     std::string(),
+                                     NULL)) {
     OneClickSigninHelper::CreateForWebContents(web_contents);
   }
 #endif
 
 #if defined(OS_WIN)
   MetroPinTabHelper::CreateForWebContents(web_contents);
 #endif
 }