Remove support for <link rel=subresource>

third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
     Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 70 matching lines @@
     case Resource::XSLStyleSheet:
         ASSERT(RuntimeEnabledFeatures::xsltEnabled());
     case Resource::CSSStyleSheet:
         return ResourceLoadPriorityHigh;
     case Resource::Raw:
     case Resource::Script:
     case Resource::Font:
     case Resource::ImportResource:
     case Resource::Manifest:
         return ResourceLoadPriorityMedium;
-    case Resource::LinkSubresource:
     case Resource::LinkPreload:
     case Resource::TextTrack:
     case Resource::Media:
     case Resource::SVGDocument:
         return ResourceLoadPriorityLow;
     case Resource::Image:
     case Resource::LinkPrefetch:
         return ResourceLoadPriorityVeryLow;
     }
 
@@ skipping 45 matching lines @@
     case Resource::Image:
         return WebURLRequest::RequestContextImage;
     case Resource::Raw:
         return WebURLRequest::RequestContextSubresource;
     case Resource::ImportResource:
         return WebURLRequest::RequestContextImport;
     case Resource::LinkPrefetch:
         return WebURLRequest::RequestContextPrefetch;
     case Resource::LinkPreload:
         return WebURLRequest::RequestContextSubresource;
-    case Resource::LinkSubresource:
-        return WebURLRequest::RequestContextSubresource;
     case Resource::TextTrack:
         return WebURLRequest::RequestContextTrack;
     case Resource::SVGDocument:
         return WebURLRequest::RequestContextImage;
     case Resource::Media: // TODO: Split this.
         return WebURLRequest::RequestContextVideo;
     case Resource::Manifest:
         return WebURLRequest::RequestContextManifest;
     }
     ASSERT_NOT_REACHED();
@@ skipping 326 matching lines @@
 {
     determineRequestContext(request, type, context().isMainFrame());
 }
 
 void ResourceFetcher::initializeResourceRequest(ResourceRequest& request, Resource::Type type)
 {
     if (request.cachePolicy() == UseProtocolCachePolicy)
         request.setCachePolicy(context().resourceRequestCachePolicy(request, type));
     if (request.requestContext() == WebURLRequest::RequestContextUnspecified)
         determineRequestContext(request, type);
-    if (type == Resource::LinkPrefetch || type == Resource::LinkSubresource)
+    if (type == Resource::LinkPrefetch)
         request.setHTTPHeaderField(HTTPNames::Purpose, "prefetch");
 
     context().addAdditionalRequestHeaders(request, (type == Resource::MainResource) ? FetchMainResource : FetchSubresource);
 }
 
 void ResourceFetcher::initializeRevalidation(const FetchRequest& request, Resource* resource)
 {
     ASSERT(resource);
     ASSERT(memoryCache()->contains(resource));
     ASSERT(resource->isLoaded());
@@ skipping 652 matching lines @@
     visitor->trace(m_loaders);
     visitor->trace(m_nonBlockingLoaders);
 #if ENABLE(OILPAN)
     visitor->trace(m_documentResources);
     visitor->trace(m_preloads);
     visitor->trace(m_resourceTimingInfoMap);
 #endif
 }
 
 } // namespace blink