CORS-RFC1918: Teach ResourceRequest about "external" requests

third_party/WebKit/Source/modules/fetch/FetchBlobDataConsumerHandle.cpp

 // Copyright 2015 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.
 
 #include "modules/fetch/FetchBlobDataConsumerHandle.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "modules/fetch/CompositeDataConsumerHandle.h"
@@ skipping 78 matching lines @@
             return;
         }
         BlobRegistry::registerPublicBlobURL(executionContext->securityOrigin(), url, m_blobDataHandle);
 
         m_loader = createLoader(executionContext, this);
         ASSERT(m_loader);
 
         ResourceRequest request(url);
         request.setRequestContext(WebURLRequest::RequestContextInternal);
         request.setUseStreamOnResponse(true);
+        // We intentionally skip 'setIsExternalRequest', as 'data:' can never be external.
         m_loader->start(request);
     }
 
 private:
     PassRefPtr<ThreadableLoader> createLoader(ExecutionContext* executionContext, ThreadableLoaderClient* client) const
     {
         ThreadableLoaderOptions options;
         options.preflightPolicy = ConsiderPreflight;
         options.crossOriginRequestPolicy = DenyCrossOriginRequests;
         options.contentSecurityPolicyEnforcement = DoNotEnforceContentSecurityPolicy;
@@ skipping 195 matching lines @@
 
     return adoptPtr(new FetchBlobDataConsumerHandle(executionContext, blobDataHandle, new DefaultLoaderFactory));
 }
 
 FetchDataConsumerHandle::Reader* FetchBlobDataConsumerHandle::obtainReaderInternal(Client* client)
 {
     return m_readerContext->obtainReader(client).leakPtr();
 }
 
 } // namespace blink