1 // Copyright 2013 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 CONTENT_RENDERER_MEDIA_CRYPTO_KEY_SYSTEMS_SUPPORT_UMA_H_ 6 #define CONTENT_RENDERER_MEDIA_CRYPTO_KEY_SYSTEMS_SUPPORT_UMA_H_ 7 8 #include <string> 9 10 #include "base/containers/scoped_ptr_hash_map.h" 11 12 namespace content { 13 14 // Key system support UMA statistics for queried key systems. 15 // 1. The key system is queried (with or without a MIME type). 16 // 2. The key system is queried with a MIME type. 17 // 3. The queried key system is supported (with or without a MIME type). This is 18 // reported when the key system is supported when queried, regardless of 19 // whether a MIME type is specified. 20 // 4. The queried key system is supported with a MIME type. This is reported 21 // when the key system is supported when queried without a MIME type 22 // specified. 23 // Note: All 4 stats are only reported once per renderer process per key system. 24 class KeySystemsSupportUMA { 25 public: 26 KeySystemsSupportUMA(); 27 ~KeySystemsSupportUMA(); 28 29 // Adds a |key_system| for which query/support statistics are reported. 30 // If you use this function to add key system to report, make sure to update 31 // AddKeySystemSupportActions() in tools/metrics/actions/extract_actions.py. 32 void AddKeySystemToReport(const std::string& key_system); 33 34 // Reports that the |key_system| is queried. When |has_type|, also reports 35 // that the |key_system| with a MIME type is queried. 36 void ReportKeySystemQuery(const std::string& key_system, bool has_type); 37 38 // Reports that the queried |key_system| is supported. When |has_type| (a 39 // a MIME type is specified in the query), also reports that the queried 40 // |key_system| is supported with that MIME type. 41 void ReportKeySystemSupport(const std::string& key_system, bool has_type); 42 43 private: 44 class Reporter; 45 46 // Returns the Reporter for |key_system|. Returns NULL if |key_system| was not 47 // added for UMA reporting. 48 Reporter* GetReporter(const std::string& key_system); 49 50 // Key system <-> Reporter map. 51 typedef base::ScopedPtrHashMap<std::string, Reporter> Reporters; 52 Reporters reporters_; 53 }; 54 55 } // namespace content 56 57 #endif // CONTENT_RENDERER_MEDIA_CRYPTO_KEY_SYSTEMS_SUPPORT_UMA_H_ 58
