Index: base/metrics/sample_map.h |
diff --git a/base/metrics/sample_map.h b/base/metrics/sample_map.h |
index d060fece19f272871ceabe25a0a8d4e78c47fc8e..d886ffe7b970bcc319e3ae8b7fce759918abba5e 100644 |
--- a/base/metrics/sample_map.h |
+++ b/base/metrics/sample_map.h |
@@ -28,6 +28,7 @@ class BASE_EXPORT SampleMap : public HistogramSamples { |
HistogramBase::Count count) override; |
HistogramBase::Count GetCount(HistogramBase::Sample value) const override; |
HistogramBase::Count TotalCount() const override; |
+ void Negate() override; |
scoped_ptr<SampleCountIterator> Iterator() const override; |
protected: |