Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

mcs/class/System/ReferenceSources/Logging.cs

@@ -0,0 +1,34 @@
+using System.Diagnostics;
+
+namespace System.Net {
+	class Logging {
+		internal static bool On {
+			get {
+				return false;
+			}
+		}
+
+		internal static TraceSource Web {
+			get {
+				return null;
+			}
+		}
+
+		[Conditional ("TRACE")]
+ 		internal static void Enter(TraceSource traceSource, object obj, string method, object paramObject) {
+ 		}
+
+		[Conditional ("TRACE")]
+		internal static void Exit(TraceSource traceSource, object obj, string method, object retObject) {
+		}
+	}
+
+#if MOBILE
+
+	class TraceSource
+	{
+		
+	}
+
+#endif
+}