Make methods private

Author: andrewlock

tracer/src/Datadog.Trace/Agent/StatsAggregator.cs

@@ -166,7 +166,7 @@ public void AddRange(in SpanCollection spans)
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        internal SpanCollection NormalizeTrace(in SpanCollection trace)
+        private SpanCollection NormalizeTrace(in SpanCollection trace)
         {
             try
             {
@@ -180,7 +180,7 @@ internal SpanCollection NormalizeTrace(in SpanCollection trace)
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        internal bool ShouldFilterTrace(in SpanCollection trace)
+        private bool ShouldFilterTrace(in SpanCollection trace)
         {
             var filter = Volatile.Read(ref _traceFilter);
             if (filter is null)
@@ -204,7 +204,7 @@ internal bool ShouldFilterTrace(in SpanCollection trace)
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        internal bool ShouldKeepTrace(in SpanCollection trace)
+        private bool ShouldKeepTrace(in SpanCollection trace)
         {
             // For OTLP, align with the OpenTelemetry SDK behavior to export a trace based
             // solely on its sampling decision.
@@ -225,7 +225,7 @@ internal bool ShouldKeepTrace(in SpanCollection trace)
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        internal SpanCollection ObfuscateTrace(in SpanCollection trace)
+        private SpanCollection ObfuscateTrace(in SpanCollection trace)
         {
             // Only obfuscate resources when the tracer has negotiated obfuscation responsibility.
             // The tracer currently only supports obfuscation version 1 (SQL, Cassandra, Redis).
@@ -247,7 +247,7 @@ internal SpanCollection ObfuscateTrace(in SpanCollection trace)
         public StatsAggregationKey BuildKey(Span span, out List<byte[]> utf8PeerTags)
             => BuildKey(span, Volatile.Read(ref _peerTagKeys), out utf8PeerTags);
 
-        internal StatsAggregationKey BuildKey(Span span, List<string> peerTagKeys, out List<byte[]> utf8PeerTags)
+        private StatsAggregationKey BuildKey(Span span, List<string> peerTagKeys, out List<byte[]> utf8PeerTags)
         {
             var rawHttpStatusCode = span.GetTag(Tags.HttpStatusCode);