Enable strict-virtual-specifiers for iOS builds.

net/proxy/proxy_config_service_ios.h

Index: net/proxy/proxy_config_service_ios.h
diff --git a/net/proxy/proxy_config_service_ios.h b/net/proxy/proxy_config_service_ios.h
index bf8f76b6b67df5402604e3b7b0dd5d09183f5a01..bf9829a8ad3c020a6e20f311c7ab3360d46684ab 100644
--- a/net/proxy/proxy_config_service_ios.h
+++ b/net/proxy/proxy_config_service_ios.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2012 The Chromium Authors. All rights reserved.

[Nico, 2015/01/20 15:48:27]

?

 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -13,7 +13,7 @@ class ProxyConfigServiceIOS : public PollingProxyConfigService {
  public:
   // Constructs a ProxyConfigService that watches the iOS system proxy settings.
   explicit ProxyConfigServiceIOS();
-  virtual ~ProxyConfigServiceIOS();
+  ~ProxyConfigServiceIOS() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceIOS);