Split CPDF_Stream/CPDF_StreamAcc into separate files

core/include/fpdfapi/cpdf_stream_acc.h

+// 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
+
+#ifndef CORE_INCLUDE_FPDFAPI_CPDF_STREAM_ACC_H_
+#define CORE_INCLUDE_FPDFAPI_CPDF_STREAM_ACC_H_
+
+#include "core/include/fpdfapi/cpdf_stream.h"
+#include "core/include/fpdfapi/cpdf_dictionary.h"
+#include "core/include/fxcrt/fx_string.h"
+#include "core/include/fxcrt/fx_system.h"
+
+class CPDF_StreamAcc {
+ public:
+  CPDF_StreamAcc();
+  ~CPDF_StreamAcc();
+
+  void LoadAllData(const CPDF_Stream* pStream,
+                   FX_BOOL bRawAccess = FALSE,
+                   FX_DWORD estimated_size = 0,
+                   FX_BOOL bImageAcc = FALSE);
+
+  const CPDF_Stream* GetStream() const { return m_pStream; }
+  CPDF_Dictionary* GetDict() const {
+    return m_pStream ? m_pStream->GetDict() : nullptr;
+  }
+
+  const uint8_t* GetData() const;
+  FX_DWORD GetSize() const;
+  const CFX_ByteString& GetImageDecoder() const { return m_ImageDecoder; }
+  const CPDF_Dictionary* GetImageParam() const { return m_pImageParam; }
+  uint8_t* DetachData();
+
+ protected:
+  uint8_t* m_pData;
+  FX_DWORD m_dwSize;
+  FX_BOOL m_bNewBuf;
+  CFX_ByteString m_ImageDecoder;
+  CPDF_Dictionary* m_pImageParam;
+  const CPDF_Stream* m_pStream;
+  uint8_t* m_pSrcData;
+};
+
+#endif  // CORE_INCLUDE_FPDFAPI_CPDF_STREAM_ACC_H_