Implement Request.context for Fetch API

Source/modules/fetch/FetchManager.cpp

 // Copyright 2014 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 "config.h"
 #include "modules/fetch/FetchManager.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 342 matching lines @@
 void FetchManager::Loader::performHTTPFetch(bool corsFlag, bool corsPreflightFlag)
 {
     ASSERT(m_request->url().protocolIsInHTTPFamily());
     // CORS preflight fetch procedure is implemented inside DocumentThreadableLoader.
 
     // "1. Let |HTTPRequest| be a copy of |request|, except that |HTTPRequest|'s
     //  body is a tee of |request|'s body."
     // We use ResourceRequest class for HTTPRequest.
     // FIXME: Support body.
     ResourceRequest request(m_request->url());
-    request.setRequestContext(WebURLRequest::RequestContextFetch);
+    request.setRequestContext(m_request->context());
     request.setHTTPMethod(m_request->method());
     const Vector<OwnPtr<FetchHeaderList::Header>>& list = m_request->headerList()->list();
     for (size_t i = 0; i < list.size(); ++i) {
         request.addHTTPHeaderField(AtomicString(list[i]->first), AtomicString(list[i]->second));
     }
 
     if (m_request->method() != "GET" && m_request->method() != "HEAD") {
         RefPtr<BlobDataHandle> blobDataHandle = m_request->blobDataHandle();
         if (blobDataHandle.get()) {
             RefPtr<FormData> httpBody(FormData::create());
@@ skipping 88 matching lines @@
     if (!m_isStopped)
         stop();
 #endif
 }
 
 ScriptPromise FetchManager::fetch(ScriptState* scriptState, FetchRequestData* request)
 {
     RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
 
+    request->setContext(WebURLRequest::RequestContextFetch);
+
     OwnPtrWillBeRawPtr<Loader> ownLoader = Loader::create(m_executionContext, this, resolver.release(), request);
     Loader* loader = m_loaders.add(ownLoader.release()).storedValue->get();
     loader->start();
     return promise;
 }
 
 void FetchManager::stop()
 {
     ASSERT(!m_isStopped);
     m_isStopped = true;
@@ skipping 11 matching lines @@
 
 DEFINE_TRACE(FetchManager)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_executionContext);
     visitor->trace(m_loaders);
 #endif
 }
 
 } // namespace blink