Clean up CPDF_Stream.

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 98 matching lines @@
   pDict->SetNameFor("Filter", "DCTDecode");
   if (!color_trans) {
     CPDF_Dictionary* pParms = new CPDF_Dictionary;
     pDict->SetFor("DecodeParms", pParms);
     pParms->SetIntegerFor("ColorTransform", 0);
   }
   m_bIsMask = FALSE;
   m_Width = width;
   m_Height = height;
   if (!m_pStream)
-    m_pStream = new CPDF_Stream(nullptr, 0, nullptr);
+    m_pStream = new CPDF_Stream;
   return pDict;
 }
 
 void CPDF_Image::SetJpegImage(IFX_FileRead* pFile) {
   uint32_t size = (uint32_t)pFile->GetSize();
   if (!size)
     return;
 
   uint32_t dwEstimateSize = std::min(size, 8192U);
   std::vector<uint8_t> data(dwEstimateSize);
@@ skipping 192 matching lines @@
         pDest[dest_offset + 1] = (uint8_t)(src_buf[src_offset + 1] * alpha);
         pDest[dest_offset + 2] = (uint8_t)(src_buf[src_offset] * alpha);
         dest_offset += 3;
         src_offset += bpp == 24 ? 3 : 4;
       }
 
       pDest += dest_pitch;
       dest_offset = 0;
     }
   }
-  if (!m_pStream) {
-    m_pStream = new CPDF_Stream(nullptr, 0, nullptr);
-  }
+  if (!m_pStream)
+    m_pStream = new CPDF_Stream;
+
   m_pStream->InitStream(dest_buf, dest_size, pDict);
   m_bIsMask = pBitmap->IsAlphaMask();
   m_Width = BitmapWidth;
   m_Height = BitmapHeight;
   FX_Free(dest_buf);
 }
 
 void CPDF_Image::ResetCache(CPDF_Page* pPage, const CFX_DIBitmap* pBitmap) {
   pPage->GetRenderCache()->ResetBitmap(m_pStream, pBitmap);
 }
@@ skipping 55 matching lines @@
   }
   if (!ret) {
     delete m_pDIBSource;
     m_pDIBSource = nullptr;
     return FALSE;
   }
   m_pMask = pSource->DetachMask();
   m_MatteColor = pSource->GetMatteColor();
   return FALSE;
 }