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

chrome/browser/extensions/api/management/management_api_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/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/extensions/api/management/management_api.h"
@@ skipping 239 matching lines @@
   SetEnabled(true, false, keys::kGestureNeededForEscalationError);
 
   // Expect an error that user cancelled the dialog.
   CommandLine::ForCurrentProcess()->AppendSwitchASCII(
       switches::kAppsGalleryInstallAutoConfirmForTests, "cancel");
   SetEnabled(true, true, keys::kUserDidNotReEnableError);
 
   // This should succeed when user accepts dialog.
   CommandLine::ForCurrentProcess()->AppendSwitchASCII(
       switches::kAppsGalleryInstallAutoConfirmForTests, "accept");
-  SetEnabled(true, true, "");
+  SetEnabled(true, true, std::string());
 
   // Crash the extension. Mock a reload by disabling and then enabling. The
   // extension should be reloaded and enabled.
   ASSERT_TRUE(CrashEnabledExtension(kId));
-  SetEnabled(false, true, "");
-  SetEnabled(true, true, "");
-  const Extension* extension = ExtensionSystem::Get(browser()->profile())->
-      extension_service()->GetExtensionById(kId, false);
+  SetEnabled(false, true, std::string());
+  SetEnabled(true, true, std::string());
+  const Extension* extension = ExtensionSystem::Get(browser()->profile())
+      ->extension_service()->GetExtensionById(kId, false);
   EXPECT_TRUE(extension);
 }
 
 }  // namespace extensions