Make CPDF_Stream() take unique_ptr's to its dictionary.

core/fpdfapi/edit/cpdf_pagecontentgenerator.cpp

 // Copyright 2016 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/fpdfapi/edit/cpdf_pagecontentgenerator.h"
 
 #include "core/fpdfapi/page/cpdf_docpagedata.h"
 #include "core/fpdfapi/page/cpdf_image.h"
 #include "core/fpdfapi/page/cpdf_imageobject.h"
 #include "core/fpdfapi/page/cpdf_page.h"
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fpdfapi/parser/cpdf_name.h"
 #include "core/fpdfapi/parser/cpdf_reference.h"
 #include "core/fpdfapi/parser/cpdf_stream.h"
 #include "core/fpdfapi/parser/fpdf_parser_decode.h"
 
 namespace {
 
 CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& ar, CFX_Matrix& matrix) {
   ar << matrix.a << " " << matrix.b << " " << matrix.c << " " << matrix.d << " "
      << matrix.e << " " << matrix.f;
   return ar;
@@ skipping 76 matching lines @@
   if (bWasInline)
     pImage->ConvertStreamToIndirectObject();
 
   uint32_t dwObjNum = pStream->GetObjNum();
   CFX_ByteString name = RealizeResource(dwObjNum, "XObject");
   if (bWasInline)
     pImageObj->SetUnownedImage(m_pDocument->GetPageData()->GetImage(dwObjNum));
 
   *buf << "/" << PDF_NameEncode(name) << " Do Q\n";
 }