SkPDF: PDFStream has-a not is-a PDFDict

src/pdf/SkPDFFormXObject.h

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkPDFFormXObject_DEFINED
 #define SkPDFFormXObject_DEFINED
 
-#include "SkPDFStream.h"
 #include "SkPDFDevice.h"
+#include "SkPDFTypes.h"
 
 /** A form XObject is a self contained description of a graphics
     object.  A form XObject is a page object with slightly different
     syntax, that can be drawn into a page content stream, just like a
     bitmap XObject can be drawn into a page content stream.
 */
 sk_sp<SkPDFObject> SkPDFMakeFormXObject(std::unique_ptr<SkStreamAsset> content,
                                         sk_sp<SkPDFArray> mediaBox,
                                         sk_sp<SkPDFDict> resourceDict,
                                         const SkMatrix& inverseTransform,
                                         const char* colorSpace);
 #endif