Prune the old deploy code. This CL does a few changes:

pkg/polymer/lib/src/analyzer.dart

 // 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.
 
 /**
  * Part of the template compilation that concerns with extracting information
  * from the HTML parse tree.
  */
 library analyzer;
 
 import 'package:html5lib/dom.dart';
 import 'package:html5lib/dom_parsing.dart';
 import 'package:source_maps/span.dart' hide SourceFile;
 
 import 'custom_tag_name.dart';
 import 'dart_parser.dart' show parseDartCode;
 import 'files.dart';
 import 'info.dart';
 import 'messages.dart';
 import 'summary.dart';
 
 /**
  * Finds custom elements in this file and the list of referenced files with
  * component declarations. This is the first pass of analysis on a file.
  *
  * Adds emitted error/warning messages to [messages], if [messages] is
  * supplied.
  */
 FileInfo analyzeDefinitions(GlobalInfo global, UrlInfo inputUrl,
-    Document document, String packageRoot,
-    Messages messages, {bool isEntryPoint: false}) {
+    Document document, Messages messages, {bool isEntryPoint: false}) {
   var result = new FileInfo(inputUrl, isEntryPoint);
-  var loader = new _ElementLoader(global, result, packageRoot, messages);
+  var loader = new _ElementLoader(global, result, messages);
   loader.visit(document);
   return result;
 }
 
 /**
  *  Extract relevant information from all files found from the root document.
  *
  *  Adds emitted error/warning messages to [messages], if [messages] is
  *  supplied.
  */
@@ skipping 296 matching lines @@
       fileInfo.components[component.tagName] = component;
     }
   }
 }
 
 /** A visitor that finds `<link rel="import">` and `<element>` tags.  */
 class _ElementLoader extends TreeVisitor {
   final GlobalInfo _global;
   final FileInfo _fileInfo;
   LibraryInfo _currentInfo;
-  String _packageRoot;
   bool _inHead = false;
   Messages _messages;
 
   /**
    * Adds emitted warning/error messages to [_messages]. [_messages]
    * must not be null.
    */
-  _ElementLoader(this._global, this._fileInfo, this._packageRoot,
-      this._messages) {
+  _ElementLoader(this._global, this._fileInfo, this._messages) {
     _currentInfo = _fileInfo;
   }
 
   void visitElement(Element node) {
     switch (node.tagName) {
       case 'link': visitLinkElement(node); break;
       case 'element':
         _messages.warning('<element> elements are not supported, use'
             ' <polymer-element> instead', node.sourceSpan);
         break;
@@ skipping 33 matching lines @@
 
     var href = node.attributes['href'];
     if (href == null || href == '') {
       _messages.warning('link rel="$rel" missing href.',
           node.sourceSpan);
       return;
     }
 
     bool isStyleSheet = rel == 'stylesheet';
     var urlInfo = UrlInfo.resolve(href, _fileInfo.inputUrl, node.sourceSpan,
-        _packageRoot, _messages, ignoreAbsolute: isStyleSheet);
+        _messages, ignoreAbsolute: isStyleSheet);
     if (urlInfo == null) return;
     if (isStyleSheet) {
       _fileInfo.styleSheetHrefs.add(urlInfo);
     } else {
       _fileInfo.componentLinks.add(urlInfo);
     }
   }
 
   void visitElementElement(Element node) {
     // TODO(jmesserly): what do we do in this case? It seems like an <element>
@@ skipping 96 matching lines @@
 
       if (node.innerHtml.trim() != '') {
         _messages.error('script tag has "src" attribute and also has script '
             'text.', node.sourceSpan);
       }
 
       if (_currentInfo.codeAttached) {
         _tooManyScriptsError(node);
       } else {
         _currentInfo.externalFile = UrlInfo.resolve(src, _fileInfo.inputUrl,
-            node.sourceSpan, _packageRoot, _messages);
+            node.sourceSpan, _messages);
       }
       return;
     }
 
     if (node.nodes.length == 0) return;
 
     // I don't think the html5 parser will emit a tree with more than
     // one child of <script>
     assert(node.nodes.length == 1);
     Text text = node.nodes[0];
@@ skipping 16 matching lines @@
   }
 
   void _tooManyScriptsError(Node node) {
     var location = _currentInfo is ComponentInfo ?
         'a custom element declaration' : 'the top-level HTML page';
 
     _messages.error('there should be only one dart script tag in $location.',
         node.sourceSpan);
   }
 }