Move Fetch API releted code to modules/fetch.

Source/modules/fetch/ResponseInit.h

 // 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.
 
 #ifndef ResponseInit_h
 #define ResponseInit_h
 
 #include "bindings/core/v8/Dictionary.h"
-#include "modules/serviceworkers/Headers.h"
+#include "modules/fetch/Headers.h"
 #include "platform/heap/Handle.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 // FIXME: Use IDL dictionary instead of this class.
 class ResponseInit {
     STACK_ALLOCATED();
 public:
     ResponseInit()
@@ skipping 20 matching lines @@
 
     unsigned short status;
     String statusText;
     Member<Headers> headers;
     Dictionary headersDictionary;
 };
 
 }
 
 #endif // ResponseInit_h