Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

mcs/class/corlib/ReferenceSources/CLRConfig.cs

@@ -0,0 +1,45 @@
+///------------------------------------------------------------------------------
+/// <copyright file="CLRConfig.cs" company="Microsoft">
+///     Copyright (c) Microsoft Corporation.  All rights reserved.
+/// </copyright>                               
+///
+/// <owner>gpaperin</owner>
+///------------------------------------------------------------------------------
+
+using System.Runtime.CompilerServices;
+using System.Runtime.Versioning;
+using System.Runtime.InteropServices;
+using System.Security;
+
+namespace System {
+	/// <summary>
+	/// For now, this class should be the central point to collect all managed declarations
+	/// of native functions designed to expose config switches.
+	/// In Dev11 M2.2 we will redesign this class to expose CLRConfig from within the CLR
+	/// and refactor managed Fx code to access all compat switches through here.
+	/// </summary>
+	[FriendAccessAllowed]
+	internal class CLRConfig {
+
+		[FriendAccessAllowed]
+		[System.Security.SecurityCritical]
+		[ResourceExposure(ResourceScope.None)]
+		[SuppressUnmanagedCodeSecurity]
+		internal static bool CheckLegacyManagedDeflateStream()
+		{
+			return false;
+		}
+
+		[System.Security.SecurityCritical]
+		[ResourceExposure(ResourceScope.None)]
+		[SuppressUnmanagedCodeSecurity]
+		internal static bool CheckThrowUnobservedTaskExceptions()
+		{
+			return false;
+		}
+
+	}  // internal class CLRConfig
+
+}  // namespace System
+
+// file CLRConfig