Move GetVisibleNetworks network type filtering to WiFiService interface.

components/wifi/wifi_service.h

 // Copyright 2013 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_UTILITY_WIFI_WIFI_SERVICE_H_
 #define CHROME_UTILITY_WIFI_WIFI_SERVICE_H_
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 36 matching lines @@
   virtual void GetProperties(const std::string& network_guid,
                              DictionaryValue* properties,
                              std::string* error) = 0;
 
   // Set Properties of network identified by |network_guid|. Populates |error|
   // on failure.
   virtual void SetProperties(const std::string& network_guid,
                              scoped_ptr<base::DictionaryValue> properties,
                              std::string* error) = 0;
 
-  // Get list of visible networks. Populates |network_list| on success.
-  virtual void GetVisibleNetworks(ListValue* network_list) = 0;
+  // Get list of visible networks of |network_type| (one of onc::network_type).
+  // Populates |network_list| on success.
+  virtual void GetVisibleNetworks(const std::string& network_type,
+                                  ListValue* network_list) = 0;
 
   // Request network scan. Send |NetworkListChanged| event on completion.
   virtual void RequestNetworkScan() = 0;
 
   // Start connect to network identified by |network_guid|. Populates |error|
   // on failure.
   virtual void StartConnect(const std::string& network_guid,
                             std::string* error) = 0;
 
   // Start disconnect from network identified by |network_guid|. Populates
@@ skipping 50 matching lines @@
 
   typedef std::list<NetworkProperties> NetworkList;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WiFiService);
 };
 
 }  // namespace wifi
 
 #endif  // CHROME_UTILITY_WIFI_WIFI_SERVICE_H_