Add getGlobalPolicy to networkingPrivate API.

extensions/browser/api/networking_private/networking_private_linux.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_LINUX_H_
 #define EXTENSIONS_BROWSER_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_LINUX_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 73 matching lines @@
                          const std::string& pin,
                          const std::string& puk,
                          const VoidCallback& success_callback,
                          const FailureCallback& failure_callback) override;
   void SetCellularSimState(const std::string& guid,
                            bool require_pin,
                            const std::string& current_pin,
                            const std::string& new_pin,
                            const VoidCallback& success_callback,
                            const FailureCallback& failure_callback) override;
-
   std::unique_ptr<base::ListValue> GetEnabledNetworkTypes() override;
   std::unique_ptr<DeviceStateList> GetDeviceStateList() override;
+  std::unique_ptr<base::DictionaryValue> GetGlobalPolicy() override;
   bool EnableNetworkType(const std::string& type) override;
   bool DisableNetworkType(const std::string& type) override;
   bool RequestScan() override;
   void AddObserver(NetworkingPrivateDelegateObserver* observer) override;
   void RemoveObserver(NetworkingPrivateDelegateObserver* observer) override;
 
  private:
   ~NetworkingPrivateLinux() override;
 
   // https://developer.gnome.org/NetworkManager/unstable/spec.html#type-NM_DEVICE_TYPE
@@ skipping 161 matching lines @@
   // Observers to Network Events.
   base::ObserverList<NetworkingPrivateDelegateObserver>
       network_events_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkingPrivateLinux);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_LINUX_H_