Use GUID instead of servicePath in network settings

ash/system/tray/system_tray_delegate.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 ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 163 matching lines @@
 
   // Returns true if settings menu item should appear.
   virtual bool ShouldShowSettings();
 
   // Shows the settings related to date, timezone etc.
   virtual void ShowDateSettings();
 
   // Shows the dialog to set system time, date, and timezone.
   virtual void ShowSetTimeDialog();
 
-  // Shows the settings related to network. If |service_path| is not empty,
-  // show the settings for that network.
-  virtual void ShowNetworkSettings(const std::string& service_path);
+  // Shows the settings related to network. If |guid| is not empty,
+  // show the settings for the corresponding network.
+  virtual void ShowNetworkSettingsForGuid(const std::string& guid);
 
   // Shows the settings related to bluetooth.
   virtual void ShowBluetoothSettings();
 
   // Shows settings related to multiple displays.
   virtual void ShowDisplaySettings();
 
   // Shows the page that lets you disable performance tracing.
   virtual void ShowChromeSlow();
 
@@ skipping 133 matching lines @@
 
   // Determines whether the device is automatically rebooted when shut down as
   // specified by the device policy |DeviceRebootOnShutdown|. This function
   // asynchronously calls |callback| once a trusted policy becomes available.
   virtual void ShouldRebootOnShutdown(const RebootOnShutdownCallback& callback);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_