Use uint64_t instead of long long as API type for consistent reason.

Bug: 74118023
Test: manual
Change-Id: Icd5f506c76d3a008a79cb6c9d2061962ca7fdd40
diff --git a/cmds/statsd/src/metrics/CountMetricProducer.cpp b/cmds/statsd/src/metrics/CountMetricProducer.cpp
index 671c57f..da5ef44 100644
--- a/cmds/statsd/src/metrics/CountMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/CountMetricProducer.cpp
@@ -109,23 +109,23 @@
         return;
     }
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
-    long long protoToken = protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_ID_COUNT_METRICS);
+    uint64_t protoToken = protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_ID_COUNT_METRICS);
 
     for (const auto& counter : mPastBuckets) {
         const MetricDimensionKey& dimensionKey = counter.first;
         VLOG("  dimension key %s", dimensionKey.c_str());
 
-        long long wrapperToken =
+        uint64_t wrapperToken =
                 protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_COUNT_REPEATED | FIELD_ID_DATA);
 
         // First fill dimension.
-        long long dimensionInWhatToken = protoOutput->start(
+        uint64_t dimensionInWhatToken = protoOutput->start(
                 FIELD_TYPE_MESSAGE | FIELD_ID_DIMENSION_IN_WHAT);
         writeDimensionToProto(dimensionKey.getDimensionKeyInWhat(), protoOutput);
         protoOutput->end(dimensionInWhatToken);
 
         if (dimensionKey.hasDimensionKeyInCondition()) {
-            long long dimensionInConditionToken = protoOutput->start(
+            uint64_t dimensionInConditionToken = protoOutput->start(
                     FIELD_TYPE_MESSAGE | FIELD_ID_DIMENSION_IN_CONDITION);
             writeDimensionToProto(dimensionKey.getDimensionKeyInCondition(), protoOutput);
             protoOutput->end(dimensionInConditionToken);
@@ -134,7 +134,7 @@
         // Then fill bucket_info (CountBucketInfo).
 
         for (const auto& bucket : counter.second) {
-            long long bucketInfoToken = protoOutput->start(
+            uint64_t bucketInfoToken = protoOutput->start(
                     FIELD_TYPE_MESSAGE | FIELD_COUNT_REPEATED | FIELD_ID_BUCKET_INFO);
             protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_START_BUCKET_ELAPSED_NANOS,
                                (long long)bucket.mBucketStartNs);