Add ResourceRequest target types for worker and shared workers....

chrome/browser/renderer_host/resource_dispatcher_host.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 
 #include <vector>
 
@@ skipping 1762 matching lines @@
     case ResourceType::FONT_RESOURCE:
       return net::MEDIUM;
 
     // Sub resources, objects and media are lower priority than potentially
     // blocking stylesheets, scripts and fonts, but are higher priority than
     // images because if they exist they are probably more central to the page
     // focus than images on the page.
     case ResourceType::SUB_RESOURCE:
     case ResourceType::OBJECT:
     case ResourceType::MEDIA:
+    case ResourceType::WORKER:
+    case ResourceType::SHARED_WORKER:
       return net::LOW;
 
     // Images are the lowest priority because they typically do not block
     // downloads or rendering and most pages have some useful content without
     // them.
     case ResourceType::IMAGE:
       return net::LOWEST;
 
     default:
       // When new resource types are added, their priority must be considered.
       NOTREACHED();
       return net::LOW;
   }
 }