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| author | lpromero@chromium.org <lpromero@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-07-18 18:50:49 +0000 |
|---|---|---|
| committer | lpromero@chromium.org <lpromero@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-07-18 18:50:49 +0000 |
| commit | 3a0e3d498cdd0be4659e03dd05888b4ae15f4993 (patch) | |
| tree | eadf56c3b27d928faf3e6f98373f6eb67bafe739 /base/metrics | |
| parent | ead7fb005dfc43c7c82aeec569377cac227c0cdb (diff) | |
| download | chromium_src-3a0e3d498cdd0be4659e03dd05888b4ae15f4993.zip chromium_src-3a0e3d498cdd0be4659e03dd05888b4ae15f4993.tar.gz chromium_src-3a0e3d498cdd0be4659e03dd05888b4ae15f4993.tar.bz2 | |
Add a HistogramRecorder class and use cases.
This CL adds a utility class to streamline the task of testing that metrics have been updated as expected. Specifically, the HistogramRecorder class allows a client to obtain the differential value of a given histogram in the interval since the given HistogramRecorder instance was created.
BUG=232414
Review URL: https://chromiumcodereview.appspot.com/18337014
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@212378 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/metrics')
| -rw-r--r-- | base/metrics/statistics_recorder.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/base/metrics/statistics_recorder.h b/base/metrics/statistics_recorder.h index 9a55225..744be01 100644 --- a/base/metrics/statistics_recorder.h +++ b/base/metrics/statistics_recorder.h @@ -66,9 +66,9 @@ 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: |