Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Compilation/ResXBuildProvider.cs

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+//------------------------------------------------------------------------------
+// <copyright file="ResXBuildProvider.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.Compilation {
+
+using System;
+using System.Resources;
+using System.IO;
+using System.Web.Hosting;
+
+/// BuildProvider for .resx files
+internal sealed class ResXBuildProvider : BaseResourcesBuildProvider {
+
+    protected override IResourceReader GetResourceReader(Stream inputStream) {
+#if !FEATURE_PAL // FEATURE_PAL 
+        ResXResourceReader reader = new ResXResourceReader(inputStream);
+
+        // Give the BasePath to the reader so it can resolve relative references (VSWhidbey 208154)
+        // NOTE: this will not work with a non-file based VirtualPathProvider
+        string physicalPath = HostingEnvironment.MapPath(VirtualPath);
+        reader.BasePath = Path.GetDirectoryName(physicalPath);
+
+        return reader;
+#else // !FEATURE_PAL 
+        throw new NotImplementedException("ROTORTODO - ResXResourceReader");
+#endif // !FEATURE_PAL 
+
+    }
+}
+
+}