Remove const std::string return by std::string

chrome/browser/chromeos/options/vpn_config_view.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_OPTIONS_VPN_CONFIG_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_OPTIONS_VPN_CONFIG_VIEW_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 99 matching lines @@
 
   // Get text from input field.
   const std::string GetTextFromField(views::Textfield* textfield,
                                      bool trim_whitespace) const;
 
   // Get passphrase from input field.
   const std::string GetPassphraseFromField(
       PassphraseTextfield* textfield) const;
 
   // Convenience methods to get text from input field or cached VirtualNetwork.
-  const std::string GetService() const;
-  const std::string GetServer() const;
-  const std::string GetPSKPassphrase() const;
-  const std::string GetUsername() const;
-  const std::string GetUserPassphrase() const;
-  const std::string GetOTP() const;
-  const std::string GetGroupName() const;
-  const std::string GetServerCACertPEM() const;
+  std::string GetService() const;
+  std::string GetServer() const;
+  std::string GetPSKPassphrase() const;
+  std::string GetUsername() const;
+  std::string GetUserPassphrase() const;
+  std::string GetOTP() const;
+  std::string GetGroupName() const;
+  std::string GetServerCACertPEM() const;
   bool GetSaveCredentials() const;
   int GetProviderTypeIndex() const;
   std::string GetProviderTypeString() const;
 
   // Parses a VPN UI |property| from the given |network|. |key| is the property
   // name within the type-specific VPN subdictionary named |dict_key|.
   void ParseVPNUIProperty(const NetworkState* network,
                           const std::string& dict_key,
                           const std::string& key,
                           NetworkPropertyUIData* property_ui_data);
@@ skipping 51 matching lines @@
   std::string client_cert_id_;
 
   base::WeakPtrFactory<VPNConfigView> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VPNConfigView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_OPTIONS_VPN_CONFIG_VIEW_H_