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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Histogram is an object that aggregates statistics, and can summarize them in | 5 // Histogram is an object that aggregates statistics, and can summarize them in |
| 6 // various forms, including ASCII graphical, HTML, and numerically (as a | 6 // various forms, including ASCII graphical, HTML, and numerically (as a |
| 7 // vector of numbers corresponding to each of the aggregating buckets). | 7 // vector of numbers corresponding to each of the aggregating buckets). |
| 8 // See header file for details and examples. | 8 // See header file for details and examples. |
| 9 | 9 |
| 10 #include "base/metrics/histogram.h" | 10 #include "base/metrics/histogram.h" |
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| 1057 histogram = it->second; | 1057 histogram = it->second; |
| 1058 } | 1058 } |
| 1059 return histogram; | 1059 return histogram; |
| 1060 } | 1060 } |
| 1061 | 1061 |
| 1062 // static | 1062 // static |
| 1063 void StatisticsRecorder::WriteHTMLGraph(const std::string& query, | 1063 void StatisticsRecorder::WriteHTMLGraph(const std::string& query, |
| 1064 std::string* output) { | 1064 std::string* output) { |
| 1065 if (!IsActive()) | 1065 if (!IsActive()) |
| 1066 return; | 1066 return; |
| 1067 output->append("<html><head><title>About Histograms"); | |
| 1068 if (!query.empty()) | |
| 1069 output->append(" - " + query); | |
| 1070 output->append("</title>" | |
| 1071 // We'd like the following no-cache... but it doesn't work. | |
| 1072 // "<META HTTP-EQUIV=\"Pragma\" CONTENT=\"no-cache\">" | |
| 1073 "</head><body>"); | |
| 1074 | 1067 |
| 1075 Histograms snapshot; | 1068 Histograms snapshot; |
| 1076 GetSnapshot(query, &snapshot); | 1069 GetSnapshot(query, &snapshot); |
| 1077 for (Histograms::iterator it = snapshot.begin(); | 1070 for (Histograms::iterator it = snapshot.begin(); |
| 1078 it != snapshot.end(); | 1071 it != snapshot.end(); |
| 1079 ++it) { | 1072 ++it) { |
| 1080 (*it)->WriteHTMLGraph(output); | 1073 (*it)->WriteHTMLGraph(output); |
| 1081 output->append("<br><hr><br>"); | 1074 output->append("<br><hr><br>"); |
| 1082 } | 1075 } |
| 1083 output->append("</body></html>"); | |
| 1084 } | 1076 } |
| 1085 | 1077 |
| 1086 // static | 1078 // static |
| 1087 void StatisticsRecorder::WriteGraph(const std::string& query, | 1079 void StatisticsRecorder::WriteGraph(const std::string& query, |
| 1088 std::string* output) { | 1080 std::string* output) { |
| 1089 if (!IsActive()) | 1081 if (!IsActive()) |
| 1090 return; | 1082 return; |
| 1091 if (query.length()) | 1083 if (query.length()) |
| 1092 StringAppendF(output, "Collections of histograms for %s\n", query.c_str()); | 1084 StringAppendF(output, "Collections of histograms for %s\n", query.c_str()); |
| 1093 else | 1085 else |
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| 1149 } | 1141 } |
| 1150 | 1142 |
| 1151 // static | 1143 // static |
| 1152 StatisticsRecorder::HistogramMap* StatisticsRecorder::histograms_ = NULL; | 1144 StatisticsRecorder::HistogramMap* StatisticsRecorder::histograms_ = NULL; |
| 1153 // static | 1145 // static |
| 1154 base::Lock* StatisticsRecorder::lock_ = NULL; | 1146 base::Lock* StatisticsRecorder::lock_ = NULL; |
| 1155 // static | 1147 // static |
| 1156 bool StatisticsRecorder::dump_on_exit_ = false; | 1148 bool StatisticsRecorder::dump_on_exit_ = false; |
| 1157 | 1149 |
| 1158 } // namespace base | 1150 } // namespace base |
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Chromium Code Reviews
Issue 7215034:
Apply CSP to chrome: and about: pages (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/