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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_ | |
6 #define CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/memory/scoped_ptr.h" | |
10 | |
11 namespace net { | |
12 class ProxyConfigService; | |
13 } | |
14 | |
15 // Interface for a class that tracks proxy preferences. The purpose of the | |
16 // concrete class is to track changes in the Preferences, to translates the | |
17 // preferences to net::ProxyConfig and to push the result over to a | |
18 // net::ProxyConfigService onto the IO thread. | |
19 class PrefProxyConfigTracker { | |
20 public: | |
21 PrefProxyConfigTracker(); | |
22 virtual ~PrefProxyConfigTracker(); | |
23 | |
24 // Creates a net::ProxyConfigService and keeps a pointer to it. After this | |
25 // call, this tracker forwards any changes of proxy preferences to the created | |
26 // ProxyConfigService. The returned ProxyConfigService must not be deleted | |
27 // before DetachFromPrefService was called. Takes ownership of the passed | |
28 // |base_service|, which can be NULL. This |base_service| provides the proxy | |
29 // settings of the OS (except of ChromeOS). This must be called on the | |
30 // UI thread. | |
31 virtual scoped_ptr<net::ProxyConfigService> CreateTrackingProxyConfigService( | |
32 scoped_ptr<net::ProxyConfigService> base_service) = 0; | |
33 | |
34 // Releases the PrefService passed upon construction and the |base_service| | |
35 // passed to CreateTrackingProxyConfigService. This must be called on the UI | |
36 // thread. | |
37 virtual void DetachFromPrefService() = 0; | |
38 | |
39 private: | |
40 DISALLOW_COPY_AND_ASSIGN(PrefProxyConfigTracker); | |
41 }; | |
42 | |
43 #endif // CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_ | |
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