Revert "fix(url_resolver): in Dart make package urls relative to AppRootUrl"

This reverts commit 469afda53e.

modules/angular2/src/services/url_resolver.dart

@@ -1,15 +1,9 @@
 library angular2.src.services.url_resolver;
 
 import 'package:angular2/di.dart' show Injectable;
-import 'package:angular2/src/services/app_root_url.dart' show AppRootUrl;
 
 @Injectable()
 class UrlResolver {
-
-  final AppRootUrl _appRootUrl;
-
-  UrlResolver(this._appRootUrl);
-
   /**
    * Resolves the `url` given the `baseUrl`:
    * - when the `url` is null, the `baseUrl` is returned,
@@ -26,8 +20,7 @@ class UrlResolver {
     Uri uri = Uri.parse(url);
 
     if (uri.scheme == 'package') {
-      var maybeSlash = _appRootUrl.value.endsWith('/') ? '' : '/';
-      return '${_appRootUrl.value}${maybeSlash}packages/${uri.path}';
+      return '/packages/${uri.path}';
     }
 
     if (uri.isAbsolute) return uri.toString();

modules/angular2/src/services/url_resolver.ts

@@ -7,7 +7,6 @@ import {
   normalizeBlank
 } from 'angular2/src/facade/lang';
 import {ListWrapper} from 'angular2/src/facade/collection';
-import {AppRootUrl} from 'angular2/src/services/app_root_url';
 
 /**
  * Used by the {@link Compiler} when resolving HTML and CSS template URLs.
@@ -18,8 +17,6 @@ import {AppRootUrl} from 'angular2/src/services/app_root_url';
  */
 @Injectable()
 export class UrlResolver {
-  constructor(_: AppRootUrl) {}
-
   /**
    * Resolves the `url` given the `baseUrl`:
    * - when the `url` is null, the `baseUrl` is returned,

modules/angular2/src/transform/template_compiler/generator.dart

@@ -12,7 +12,6 @@ import 'package:angular2/src/render/dom/compiler/style_url_resolver.dart';
 import 'package:angular2/src/render/dom/compiler/view_loader.dart';
 import 'package:angular2/src/render/xhr.dart' show XHR;
 import 'package:angular2/src/reflection/reflection.dart';
-import 'package:angular2/src/services/app_root_url.dart';
 import 'package:angular2/src/services/url_resolver.dart';
 import 'package:angular2/src/transform/common/asset_reader.dart';
 import 'package:angular2/src/transform/common/xhr_impl.dart';
@@ -86,7 +85,7 @@ class _TemplateExtractor {
 
   _TemplateExtractor(XHR xhr)
       : _factory = new CompileStepFactory(new ng.Parser(new ng.Lexer())) {
-    var urlResolver = new UrlResolver(new AppRootUrl(''));
+    var urlResolver = new UrlResolver();
     var styleUrlResolver = new StyleUrlResolver(urlResolver);
     var styleInliner = new StyleInliner(xhr, styleUrlResolver, urlResolver);