Convert DCHECKs to CHECKs for histogram types

base/metrics/sparse_histogram.cc

Index: base/metrics/sparse_histogram.cc
diff --git a/base/metrics/sparse_histogram.cc b/base/metrics/sparse_histogram.cc
index a8dfbeb757bcdb28d9b014436efe779bcdbc6be3..415d7f943024a84965933cfb39af4024fd334ea6 100644
--- a/base/metrics/sparse_histogram.cc
+++ b/base/metrics/sparse_histogram.cc
@@ -68,7 +68,7 @@ HistogramBase* SparseHistogram::FactoryGet(const std::string& name,
     ReportHistogramActivity(*histogram, HISTOGRAM_LOOKUP);
   }
 
-  DCHECK_EQ(SPARSE_HISTOGRAM, histogram->GetHistogramType());
+  CHECK_EQ(SPARSE_HISTOGRAM, histogram->GetHistogramType());
   return histogram;
 }