Add data-URI support class to dart:core (next to Uri).

tests/corelib/uri_scheme_test.dart

Index: tests/corelib/uri_scheme_test.dart
diff --git a/tests/corelib/uri_scheme_test.dart b/tests/corelib/uri_scheme_test.dart
deleted file mode 100644
index 09bdfc4dfbba34d4d361f6c1dae1bb6fc4ccafdc..0000000000000000000000000000000000000000
--- a/tests/corelib/uri_scheme_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void testInvalidArguments() {
-  Expect.throws(() => new Uri(scheme: "_"), (e) => e is FormatException);
-  Expect.throws(() => new Uri(scheme: "http_s"), (e) => e is FormatException);
-  Expect.throws(() => new Uri(scheme: "127.0.0.1:80"),
-                (e) => e is FormatException);
-}
-
-void testScheme() {
-  test(String expectedScheme, String expectedUri, String scheme) {
-    var uri = new Uri(scheme: scheme);
-    Expect.equals(expectedScheme, uri.scheme);
-    Expect.equals(expectedUri, uri.toString());
-    uri = Uri.parse("$scheme:");
-    Expect.equals(expectedScheme, uri.scheme);
-    Expect.equals(expectedUri, uri.toString());
-  }
-
-  test("http", "http:", "http");
-  test("http", "http:", "HTTP");
-  test("http", "http:", "hTTP");
-  test("http", "http:", "Http");
-  test("http+ssl", "http+ssl:", "HTTP+ssl");
-  test("urn", "urn:", "urn");
-  test("urn", "urn:", "UrN");
-  test("a123.432", "a123.432:", "a123.432");
-}
-
-main() {
-  testInvalidArguments();
-  testScheme();
-}