Revert "For consistency with ResourceDictionary, expose the Source fo…

…r a StyleSheet (#2589)"

This reverts commit f66a72d.

Xamarin.Forms.Core/StyleSheets/StyleSheet.cs

@@ -15,8 +15,6 @@ public sealed class StyleSheet : IStyle
 		{
 		}
 
-		public Uri Source { get; internal set; }
-
 		internal IDictionary<Selector, Style> Styles { get; set; } = new Dictionary<Selector, Style>();
 
 		public static StyleSheet FromAssemblyResource(Assembly assembly, string resourceId, IXmlLineInfo lineInfo = null)

Xamarin.Forms.Xaml.UnitTests/StyleSheet.xaml.cs

@@ -1,9 +1,8 @@
 using System;
-using System.IO;
-using System.Linq;
-using System.Reflection;
 using NUnit.Framework;
+
 using Xamarin.Forms.Core.UnitTests;
+using NUnit.Framework.Constraints;
 
 namespace Xamarin.Forms.Xaml.UnitTests
 {
@@ -43,44 +42,6 @@ public void StyleSheetsAreApplied(bool useCompiledXaml)
 				Assert.That(layout.label0.TextColor, Is.EqualTo(Color.Azure));
 				Assert.That(layout.label0.BackgroundColor, Is.EqualTo(Color.AliceBlue));
 			}
-
-			[TestCase(false), TestCase(true)]
-			public void StyleSheetSourceIsApplied(bool useCompiledXaml)
-			{
-				// Having a custom ResourceProvider forces the LoadFromXaml code path 
-				// for both XamlC and non-XamlC
-				Xamarin.Forms.Internals.ResourceLoader.ResourceProvider = GetResource;
-
-				var layout = new StyleSheet(useCompiledXaml);
-
-				Assert.AreEqual("css/foo.css", layout.Resources.StyleSheets[0].Source.OriginalString);
-
-				// Reset state to its initial
-				Xamarin.Forms.Internals.ResourceLoader.ResourceProvider = null;
-				DesignMode.IsDesignModeEnabled = false;
-			}
-
-			string GetResource(AssemblyName name, string path)
-			{
-				var assembly = Assembly.Load(name);
-				var resourceId = assembly
-					.GetCustomAttributes<XamlResourceIdAttribute>()
-					.Where(x => x.Path == path)
-					.Select(x => x.ResourceId)
-					.FirstOrDefault();
-
-				if (!string.IsNullOrEmpty(resourceId))
-				{
-					using (var stream = assembly.GetManifestResourceStream(resourceId))
-					{
-						if (stream != null)
-							using (var reader = new StreamReader(stream))
-								return reader.ReadToEnd();
-					}
-				}
-
-				return null;
-			}
 		}
 	}
 }

Xamarin.Forms.Xaml/MarkupExtensions/StyleSheetExtension.cs

@@ -35,9 +35,7 @@ object IValueProvider.ProvideValue(IServiceProvider serviceProvider)
 				var rootTargetPath = XamlResourceIdAttribute.GetPathForType(rootObjectType);
 				var resourcePath = ResourceDictionary.RDSourceTypeConverter.GetResourcePath(Source, rootTargetPath);
 				var resString = DependencyService.Get<IResourcesLoader>().GetResource(resourcePath, rootObjectType.GetTypeInfo().Assembly, lineInfo);
-				var styleSheet = StyleSheet.FromString(resString);
-				styleSheet.Source = new Uri(resourcePath, UriKind.Relative);
-				return styleSheet;
+				return StyleSheet.FromString(resString);
 			}
 
 			if (!string.IsNullOrEmpty(Style)) {