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

chrome/browser/extensions/platform_app_browsertest_util.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/platform_app_browsertest_util.h"
 
 #include "base/command_line.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/extensions/api/tabs/tabs_api.h"
 #include "chrome/browser/extensions/extension_function_test_utils.h"
@@ skipping 124 matching lines @@
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   base::FilePath test_doc(test_data_dir_.AppendASCII(test_file));
   test_doc = test_doc.NormalizePathSeparators();
   command_line->AppendArgPath(test_doc);
 }
 
 ShellWindow* PlatformAppBrowserTest::CreateShellWindow(
     const Extension* extension) {
   ShellWindow::CreateParams params;
   return ShellWindow::Create(
-      browser()->profile(), extension, GURL(""), params);
+      browser()->profile(), extension, GURL(std::string()), params);
 }
 
 ShellWindow* PlatformAppBrowserTest::CreateShellWindowFromParams(
     const Extension* extension, const ShellWindow::CreateParams& params) {
   return ShellWindow::Create(
-      browser()->profile(), extension, GURL(""), params);
+      browser()->profile(), extension, GURL(std::string()), params);
 }
 
 void PlatformAppBrowserTest::CloseShellWindow(ShellWindow* window) {
   content::WindowedNotificationObserver destroyed_observer(
       content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
       content::NotificationService::AllSources());
   window->GetBaseWindow()->Close();
   destroyed_observer.Wait();
 }
 
 void ExperimentalPlatformAppBrowserTest::SetUpCommandLine(
     CommandLine* command_line) {
   PlatformAppBrowserTest::SetUpCommandLine(command_line);
   command_line->AppendSwitch(switches::kEnableExperimentalExtensionApis);
 }
 
 }  // namespace extensions