diff options
Diffstat (limited to 'chromium/base/metrics/statistics_recorder.h')
| -rw-r--r-- | chromium/base/metrics/statistics_recorder.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/chromium/base/metrics/statistics_recorder.h b/chromium/base/metrics/statistics_recorder.h index 0716e80572d..3bef622b76f 100644 --- a/chromium/base/metrics/statistics_recorder.h +++ b/chromium/base/metrics/statistics_recorder.h @@ -30,7 +30,7 @@ class BASE_EXPORT StatisticsRecorder { public: typedef std::vector<HistogramBase*> Histograms; - // Initializes the StatisticsRecorder system. + // Initializes the StatisticsRecorder system. Safe to call multiple times. static void Initialize(); // Find out if histograms can now be registered into our list. @@ -70,9 +70,9 @@ class BASE_EXPORT StatisticsRecorder { static HistogramBase* FindHistogram(const std::string& name); // GetSnapshot copies some of the pointers to registered histograms into the - // caller supplied vector (Histograms). Only histograms with names matching - // query are returned. The query must be a substring of histogram name for its - // pointer to be copied. + // caller supplied vector (Histograms). Only histograms which have |query| as + // a substring are copied (an empty string will process all registered + // histograms). static void GetSnapshot(const std::string& query, Histograms* snapshot); private: @@ -86,6 +86,7 @@ class BASE_EXPORT StatisticsRecorder { friend struct DefaultLazyInstanceTraits<StatisticsRecorder>; friend class HistogramBaseTest; + friend class HistogramSnapshotManagerTest; friend class HistogramTest; friend class SparseHistogramTest; friend class StatisticsRecorderTest; |