[Fetch API] Implement Request.formData and Response.formData.

third_party/WebKit/Source/modules/fetch/Request.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 "modules/fetch/Request.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/fetch/FetchUtils.h"
@@ skipping 695 matching lines @@
   }
 
   webRequest.setReferrer(
       m_request->referrerString(),
       static_cast<WebReferrerPolicy>(m_request->getReferrerPolicy()));
   // FIXME: How can we set isReload properly? What is the correct place to load
   // it in to the Request object? We should investigate the right way to plumb
   // this information in to here.
 }
 
+String Request::contentType() const {
+  String result;
+  m_request->headerList()->get(HTTPNames::Content_Type, result);
+  return result;
+}
+
 String Request::mimeType() const {
   return m_request->mimeType();
 }
 
 void Request::refreshBody(ScriptState* scriptState) {
   v8::Local<v8::Value> bodyBuffer = toV8(this->bodyBuffer(), scriptState);
   v8::Local<v8::Value> request = toV8(this, scriptState);
   if (request.IsEmpty()) {
     // |toV8| can return an empty handle when the worker is terminating.
     // We don't want the renderer to crash in such cases.
     // TODO(yhirano): Delete this block after the graceful shutdown
     // mechanism is introduced.
     return;
   }
   DCHECK(request->IsObject());
   V8HiddenValue::setHiddenValue(
       scriptState, request.As<v8::Object>(),
       V8HiddenValue::internalBodyBuffer(scriptState->isolate()), bodyBuffer);
 }
 
 DEFINE_TRACE(Request) {
   Body::trace(visitor);
   visitor->trace(m_request);
   visitor->trace(m_headers);
 }
 
 }  // namespace blink