Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/rx/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/QueryLanguage.Concurrency.cs

@@ -0,0 +1,61 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+using System.Reactive.Concurrency;
+using System.Reactive.Disposables;
+using System.Threading;
+
+namespace System.Reactive.Linq
+{
+#if !NO_PERF
+    using ObservableImpl;
+#endif
+
+    internal partial class QueryLanguage
+    {
+        #region + ObserveOn +
+
+        public virtual IObservable<TSource> ObserveOn<TSource>(IObservable<TSource> source, IScheduler scheduler)
+        {
+            return Synchronization.ObserveOn<TSource>(source, scheduler);
+        }
+
+#if !NO_SYNCCTX
+        public virtual IObservable<TSource> ObserveOn<TSource>(IObservable<TSource> source, SynchronizationContext context)
+        {
+            return Synchronization.ObserveOn<TSource>(source, context);
+        }
+#endif
+
+        #endregion
+
+        #region + SubscribeOn +
+
+        public virtual IObservable<TSource> SubscribeOn<TSource>(IObservable<TSource> source, IScheduler scheduler)
+        {
+            return Synchronization.SubscribeOn<TSource>(source, scheduler);
+        }
+
+#if !NO_SYNCCTX
+        public virtual IObservable<TSource> SubscribeOn<TSource>(IObservable<TSource> source, SynchronizationContext context)
+        {
+            return Synchronization.SubscribeOn<TSource>(source, context);
+        }
+#endif
+
+        #endregion
+
+        #region + Synchronize +
+
+        public virtual IObservable<TSource> Synchronize<TSource>(IObservable<TSource> source)
+        {
+            return Synchronization.Synchronize(source);
+        }
+
+        public virtual IObservable<TSource> Synchronize<TSource>(IObservable<TSource> source, object gate)
+        {
+            return Synchronization.Synchronize(source, gate);
+        }
+
+        #endregion
+    }
+}