Revert "Add Resource class. Currently unimplemented."

sdk/lib/_internal/compiler/js_lib/core_patch.dart

Index: sdk/lib/_internal/compiler/js_lib/core_patch.dart
diff --git a/sdk/lib/_internal/compiler/js_lib/core_patch.dart b/sdk/lib/_internal/compiler/js_lib/core_patch.dart
index 4e2e714ed5df6cdcdc6b5c64bb8e45b96b9eeca4..7045e05f906283ba58a821eb47178164298de357 100644
--- a/sdk/lib/_internal/compiler/js_lib/core_patch.dart
+++ b/sdk/lib/_internal/compiler/js_lib/core_patch.dart
@@ -510,71 +510,3 @@ class Uri {
     throw new UnsupportedError("'Uri.base' is not supported");
   }
 }
-
-@patch
-class Resource {
-  @patch
-  const factory Resource(String uri) = _Resource;
-}
-
-Uri _resolvePackageUri(Uri packageUri) {
-  assert(packageUri.scheme == "package");
-  if (packageUri.hasAuthority) {
-    throw new ArgumentError("Package-URI must not have a host: $packageUri");
-  }
-  var resolved = Uri.base.resolve("packages/${packageUri.path}");
-  return resolved;
-}
-
-class _Resource implements Resource {
-  final String _location;
-
-  const _Resource(String uri) : _location = uri;
-
-  Uri get uri => Uri.base.resolve(_location);
-
-  Stream<List<int>> openRead() {
-    Uri uri = this.uri;
-    if (uri.scheme == "package") {
-      uri = _resolvePackageUri(uri);
-    }
-    if (uri.scheme == "http" || uri.scheme == "https") {
-      return _readAsStream(uri);
-    }
-    throw new StateError("Unable to find resource, unknown scheme: $_location");
-  }
-
-  Future<List<int>> readAsBytes() {
-    Uri uri = this.uri;
-    if (uri.scheme == "package") {
-      uri = _resolvePackageUri(uri);
-    }
-    if (uri.scheme == "http" || uri.scheme == "https") {
-      return _readAsBytes(uri);
-    }
-    throw new StateError("Unable to find resource, unknown scheme: $_location");
-  }
-
-  Future<String> readAsString({Encoding encoding: UTF8}) {
-    Uri uri = this.uri;
-    if (uri.scheme == "package") {
-      uri = _resolvePackageUri(uri);
-    }
-    if (uri.scheme == "http" || uri.scheme == "https") {
-      return _readAsString(uri);
-    }
-    throw new StateError("Unable to find resource, unknown scheme: $_location");
-  }
-
-  Stream<List<int>> _readAsStream(Uri uri) {
-    throw new UnimplementedError("Streaming bytes via HTTP");
-  }
-
-  Future<List<int>> _readAsBytes(Uri uri) {
-    throw new UnimplementedError("Reading bytes via HTTP");
-  }
-
-  Future<String> _readAsString(Uri uri) {
-    throw new UnimplementedError("Reading string via HTTP");
-  }
-}