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1 // Copyright 2016 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_MEDIA_OUTPUT_PROTECTION_PROXY_H_ | |
6 #define CHROME_BROWSER_MEDIA_OUTPUT_PROTECTION_PROXY_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include "base/memory/weak_ptr.h" | |
11 #include "content/public/browser/browser_thread.h" | |
12 | |
13 #if defined(OS_CHROMEOS) | |
14 #include "chrome/browser/chromeos/display/output_protection_delegate.h" | |
15 #endif | |
16 | |
17 namespace chrome { | |
18 | |
19 // A class to query output protection status and/or enable output protection. | |
20 // | |
21 // On Chrome OS, operations on the physical displays are delegated to | |
22 // OutputProtectionDelegate. On other platforms, physical displays are not | |
23 // checked. | |
24 // | |
25 // On all platforms, in ProcessQueryStatusResult(), this class checks the | |
26 // network link and adds it to the existing link mask. | |
27 // | |
28 // All methods except constructor should be invoked in UI thread. | |
29 class OutputProtectionProxy { | |
30 public: | |
31 typedef base::Callback<void(bool /* success */, | |
32 uint32_t /* link_mask */, | |
33 uint32_t /* protection_mask*/)> | |
34 QueryStatusCallback; | |
35 typedef base::Callback<void(bool /* success */)> EnableProtectionCallback; | |
36 | |
37 OutputProtectionProxy(int render_process_id, int render_frame_id); | |
38 | |
39 void QueryStatus(const QueryStatusCallback& callback); | |
40 void EnableProtection(uint32_t desired_method_mask, | |
41 const EnableProtectionCallback& callback); | |
42 | |
43 private: | |
44 // Makes sure this class can only be deleted on the UI thread. | |
45 friend class base::DeleteHelper<OutputProtectionProxy>; | |
46 friend struct content::BrowserThread::DeleteOnThread< | |
47 content::BrowserThread::UI>; | |
48 ~OutputProtectionProxy(); | |
49 | |
50 // Callbacks for QueryStatus(). It also checks the network link and adds it | |
51 // to the |link_mask|. | |
52 void ProcessQueryStatusResult(const QueryStatusCallback& callback, | |
53 bool success, | |
54 uint32_t link_mask, | |
55 uint32_t protection_mask); | |
56 | |
57 // Used to lookup the WebContents associated with the render frame. | |
58 int render_process_id_; | |
59 int render_frame_id_; | |
60 | |
61 #if defined(OS_CHROMEOS) | |
62 chromeos::OutputProtectionDelegate output_protection_delegate_; | |
63 #endif | |
64 | |
65 base::WeakPtrFactory<OutputProtectionProxy> weak_ptr_factory_; | |
66 }; | |
67 | |
68 } // namespace chrome | |
69 | |
70 #endif // CHROME_BROWSER_MEDIA_OUTPUT_PROTECTION_PROXY_H_ | |
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