HISTOGRAM_SPARSE_SLOWLY   43 base/metrics/sparse_histogram.h     HISTOGRAM_SPARSE_SLOWLY(name, sample)
HISTOGRAM_SPARSE_SLOWLY   67 base/metrics/sparse_histogram_unittest.cc   HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
HISTOGRAM_SPARSE_SLOWLY   68 base/metrics/sparse_histogram_unittest.cc   HISTOGRAM_SPARSE_SLOWLY("Sparse", 200);
HISTOGRAM_SPARSE_SLOWLY   69 base/metrics/sparse_histogram_unittest.cc   HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);