1 files changed, 4 insertions, 4 deletions
diff --git a/base/metrics/sparse_histogram.cc b/base/metrics/sparse_histogram.cc
index cca76bfee7..415d7f9430 100644
--- a/base/metrics/sparse_histogram.cc
+++ b/base/metrics/sparse_histogram.cc
@@ -213,13 +213,13 @@ HistogramBase* SparseHistogram::DeserializeInfoImpl(PickleIterator* iter) {
   return SparseHistogram::FactoryGet(histogram_name, flags);
 }
 
-void SparseHistogram::GetParameters(DictionaryValue* /*params*/) const {
+void SparseHistogram::GetParameters(DictionaryValue* params) const {
   // TODO(kaiwang): Implement. (See HistogramBase::WriteJSON.)
 }
 
-void SparseHistogram::GetCountAndBucketData(Count* /*count*/,
-                                            int64_t* /*sum*/,
-                                            ListValue* /*buckets*/) const {
+void SparseHistogram::GetCountAndBucketData(Count* count,
+                                            int64_t* sum,
+                                            ListValue* buckets) const {
   // TODO(kaiwang): Implement. (See HistogramBase::WriteJSON.)
 }