Switch to standard integer types in base/.

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 db76a8a9e00911fd3c4c8008530e775d29e2d231..1ed1e78654d622ffe82ff89fdae295cef1760ac4 100644
--- a/base/metrics/sparse_histogram.cc
+++ b/base/metrics/sparse_histogram.cc
@@ -20,7 +20,7 @@ typedef HistogramBase::Sample Sample;
 
 // static
 HistogramBase* SparseHistogram::FactoryGet(const std::string& name,
-                                           int32 flags) {
+                                           int32_t flags) {
   HistogramBase* histogram = StatisticsRecorder::FindHistogram(name);
 
   if (!histogram) {
@@ -124,7 +124,7 @@ void SparseHistogram::GetParameters(DictionaryValue* params) const {
 }
 
 void SparseHistogram::GetCountAndBucketData(Count* count,
-                                            int64* sum,
+                                            int64_t* sum,
                                             ListValue* buckets) const {
   // TODO(kaiwang): Implement. (See HistogramBase::WriteJSON.)
 }