Turn on -Wdelete-non-virtual-dtor for chromeos as well.

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 865 matching lines @@
   enum HardwareAddressFormat {
     FORMAT_RAW_HEX,
     FORMAT_COLON_SEPARATED_HEX
   };
 
   class NetworkManagerObserver {
    public:
     // Called when the state of the network manager has changed,
     // for example, networks have appeared or disappeared.
     virtual void OnNetworkManagerChanged(NetworkLibrary* obj) = 0;
+   protected:
+    ~NetworkManagerObserver() { }
   };
 
   class NetworkObserver {
    public:
     // Called when the state of a single network has changed,
     // for example signal strength or connection state.
     virtual void OnNetworkChanged(NetworkLibrary* cros,
                                   const Network* network) = 0;
+   protected:
+    ~NetworkObserver() {}
   };
 
   class NetworkDeviceObserver {
    public:
     // Called when the state of a single device has changed,
     // for example SIMLock state for cellular.
     virtual void OnNetworkDeviceChanged(NetworkLibrary* cros,
                                         const NetworkDevice* device) = 0;
+   protected:
+    ~NetworkDeviceObserver() {}
   };
 
   class CellularDataPlanObserver {
    public:
     // Called when the cellular data plan has changed.
     virtual void OnCellularDataPlanChanged(NetworkLibrary* obj) = 0;
+   protected:
+    ~CellularDataPlanObserver() {}
   };
 
   class PinOperationObserver {
    public:
     // Called when pin async operation has completed.
     // Network is NULL when we don't have an associated Network object.
     virtual void OnPinOperationCompleted(NetworkLibrary* cros,
                                          PinOperationError error) = 0;
+   protected:
+    ~PinOperationObserver() {}
   };
 
   class UserActionObserver {
    public:
     // Called when user initiates a new connection.
     // Network is NULL when we don't have an associated Network object.
     virtual void OnConnectionInitiated(NetworkLibrary* cros,
                                        const Network* network) = 0;
+   protected:
+    ~UserActionObserver() {}
   };
 
   virtual ~NetworkLibrary() {}
 
   virtual void AddNetworkManagerObserver(NetworkManagerObserver* observer) = 0;
   virtual void RemoveNetworkManagerObserver(
       NetworkManagerObserver* observer) = 0;
 
   // An attempt to add an observer that has already been added for a
   // give service path will be ignored.
@@ skipping 275 matching lines @@
   virtual void SetIPConfig(const NetworkIPConfig& ipconfig) = 0;
 
   // 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_