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

chrome/browser/shell_integration_linux.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/shell_integration_linux.h"
 
 #include <fcntl.h>
 #include <glib.h>
 #include <stdlib.h>
 #include <sys/stat.h>
@@ skipping 417 matching lines @@
 } // namespace
 
 // static
 ShellIntegration::DefaultWebClientSetPermission
     ShellIntegration::CanSetAsDefaultBrowser() {
   return SET_DEFAULT_UNATTENDED;
 }
 
 // static
 bool ShellIntegration::SetAsDefaultBrowser() {
-  return SetDefaultWebClient("");
+  return SetDefaultWebClient(std::string());
 }
 
 // static
 bool ShellIntegration::SetAsDefaultProtocolClient(const std::string& protocol) {
   return SetDefaultWebClient(protocol);
 }
 
 // static
 ShellIntegration::DefaultWebClientState ShellIntegration::GetDefaultBrowser() {
-  return GetIsDefaultWebClient("");
+  return GetIsDefaultWebClient(std::string());
 }
 
 // static
 std::string ShellIntegration::GetApplicationForProtocol(const GURL& url) {
   return std::string("xdg-open");
 }
 
 // static
 ShellIntegration::DefaultWebClientState
 ShellIntegration::IsDefaultProtocolClient(const std::string& protocol) {
@@ skipping 380 matching lines @@
 
   base::FilePath shortcut_filename = GetExtensionShortcutFilename(
       profile_path, extension_id);
   DCHECK(!shortcut_filename.empty());
 
   DeleteShortcutOnDesktop(shortcut_filename);
   DeleteShortcutInApplicationsMenu(shortcut_filename);
 }
 
 }  // namespace ShellIntegrationLinux