Fix stack overflow in object Clone() functions

core/fpdfapi/fpdf_page/cpdf_image.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/fpdf_page/include/cpdf_image.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 51 matching lines @@
   }
 }
 
 CPDF_Image* CPDF_Image::Clone() {
   if (m_pStream->GetObjNum())
     return m_pDocument->GetPageData()->GetImage(m_pStream);
 
   CPDF_Image* pImage =
       new CPDF_Image(m_pDocument, ToStream(m_pStream->Clone()), m_bInline);
   if (m_bInline)
-    pImage->SetInlineDict(ToDictionary(m_pInlineDict->Clone(TRUE)));
+    pImage->SetInlineDict(ToDictionary(m_pInlineDict->CloneDirectObject()));
 
   return pImage;
 }
 
 CPDF_Dictionary* CPDF_Image::InitJPEG(uint8_t* pData, uint32_t size) {
   int32_t width;
   int32_t height;
   int32_t num_comps;
   int32_t bits;
   bool color_trans;
@@ skipping 317 matching lines @@
   }
   if (!ret) {
     delete m_pDIBSource;
     m_pDIBSource = nullptr;
     return FALSE;
   }
   m_pMask = pSource->DetachMask();
   m_MatteColor = pSource->GetMatteColor();
   return FALSE;
 }