fetch: Align RequestInit's |headers| with the spec.

third_party/WebKit/Source/modules/fetch/Response.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/Response.h"
 
 #include <memory>
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8ArrayBuffer.h"
 #include "bindings/core/v8/V8ArrayBufferView.h"
 #include "bindings/core/v8/V8BindingForCore.h"
 #include "bindings/core/v8/V8Blob.h"
 #include "bindings/core/v8/V8FormData.h"
 #include "bindings/core/v8/V8PrivateProperty.h"
 #include "bindings/core/v8/V8URLSearchParams.h"
-#include "bindings/modules/v8/ByteStringSequenceSequenceOrByteStringByteStringRecordOrHeaders.h"
 #include "core/dom/DOMArrayBuffer.h"
 #include "core/dom/DOMArrayBufferView.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/URLSearchParams.h"
 #include "core/fileapi/Blob.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/FormData.h"
 #include "core/streams/ReadableStreamOperations.h"
 #include "modules/fetch/BlobBytesConsumer.h"
 #include "modules/fetch/BodyStreamBuffer.h"
@@ skipping 193 matching lines @@
 
   // "5. Set |r|'s response's status message to |init|'s statusText member."
   r->response_->SetStatusMessage(AtomicString(init.statusText()));
 
   // "6. If |init|'s headers member is present, run these substeps:"
   if (init.hasHeaders()) {
     // "1. Empty |r|'s response's header list."
     r->response_->HeaderList()->ClearList();
     // "2. Fill |r|'s Headers object with |init|'s headers member. Rethrow
     // any exceptions."
-    if (init.headers().isByteStringSequenceSequence()) {
-      r->headers_->FillWith(init.headers().getAsByteStringSequenceSequence(),
-                            exception_state);
-    } else if (init.headers().isByteStringByteStringRecord()) {
-      r->headers_->FillWith(init.headers().getAsByteStringByteStringRecord(),
-                            exception_state);
-    } else if (init.headers().isHeaders()) {
-      r->headers_->FillWith(init.headers().getAsHeaders(), exception_state);
-    }
+    r->headers_->FillWith(init.headers(), exception_state);
     if (exception_state.HadException())
       return nullptr;
   }
   // "7. If body is given, run these substeps:"
   if (body) {
     // "1. If |init|'s status member is a null body status, throw a
     //     TypeError."
     // "2. Let |stream| and |Content-Type| be the result of extracting
     //     body."
     // "3. Set |r|'s response's body to |stream|."
@@ skipping 212 matching lines @@
       .Set(response.As<v8::Object>(), body_buffer);
 }
 
 DEFINE_TRACE(Response) {
   Body::Trace(visitor);
   visitor->Trace(response_);
   visitor->Trace(headers_);
 }
 
 }  // namespace blink