Only show prefer network checkbox for networks stored on user profile.

chrome/browser/chromeos/cros/network_library.h

 // Copyright (c) 2011 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_CROS_NETWORK_LIBRARY_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 1276 matching lines @@
   virtual NetworkIPConfigVector GetIPConfigs(
       const std::string& device_path,
       std::string* hardware_address,
       HardwareAddressFormat) = 0;
 
   // Sets an IP config. This is called when user changes from dhcp to static
   // or vice versa or when user changes the ip config info.
   // If nothing is changed, this method does nothing.
   virtual void SetIPConfig(const NetworkIPConfig& ipconfig) = 0;
 
+  // This will connect to an preferred network if the currently connected

[stevenjb, 2011/08/03 21:37:52]

nit: a preferred

[Charlie Lee, 2011/08/03 22:22:59]

Done.

+  // network is not preferred. This should be called when the active profile
+  // changes.
+  virtual void SwitchToPreferredNetworkIfAppropriate() = 0;

[stevenjb, 2011/08/03 21:37:52]

personal nit: It seems to me that "IfAppropriate" is implied and may not be
necessary?

[Charlie Lee, 2011/08/03 22:22:59]

Done.

+
   // Factory function, creates a new instance and returns ownership.
   // For normal usage, access the singleton via CrosLibrary::Get().
   static NetworkLibrary* GetImpl(bool stub);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_H_