Begin implementing a debugger page in Observatory.

runtime/bin/vmservice/resources.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 vmservice_io;
 
 String detectMimeType(String name) {
   var extensionStart = name.lastIndexOf('.');
   var extension = name.substring(extensionStart+1);
   switch (extension) {
     case 'html':
       return 'text/html; charset=UTF-8';
     case 'dart':
       return 'application/dart; charset=UTF-8';
     case 'js':
       return 'application/javascript; charset=UTF-8';
     case 'css':
       return 'text/css; charset=UTF-8';
     case 'gif':
       return 'image/gif';
     case 'png':
       return 'image/png';
     case 'jpg':
       return 'image/jpeg';
     case 'jpeg':
       return 'image/jpeg';
+    case 'svg':
+      return 'image/svg+xml';
     default:
       return 'text/plain';
   }
 }
 
 
 class Resource {
   final String name;
   final String mimeType;
   final List<int> data;
   Resource(this.name, this.mimeType, this.data);
   static final Map<String, Resource> resources = new Map<String, Resource>();
 }
 
 
 void _addResource(String name, List<int> data) {
   var mimeType = detectMimeType(name);
   Resource resource = new Resource(name, mimeType, data);
   Resource.resources[name] = resource;
 }
 
 void _triggerResourceLoad() native "VMServiceIO_TriggerResourceLoad";