Cleanup the xfa/src/fgas directory.

This CL moves the code from xfa/src/fgas/src up one level. It then takes the
headers in xfa/src/fgas/include and moves them to their correct folder. The
src/ and include/ directories are then removed.

In some cases, when moving from include/ there was another header with the
same name. Those headers were either folded together, or the content of the
conflicting folder moved to an anonymous namespace in the cpp file as they were
not used anywhere else.

Files with duplicate names as core/src/crt were renamed to be fgas_ instead of
fx_. (e.g. fgas_system.h, fgas_memory.h, fgas_stream.h)

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1776303002 .

1 files changed, 78 insertions, 0 deletions

diff --git a/xfa/src/fgas/crt/fgas_stream.h b/xfa/src/fgas/crt/fgas_stream.h
new file mode 100644
index 0000000000..cc40a76cc6
--- /dev/null
+++ b/xfa/src/fgas/crt/fgas_stream.h
@@ -0,0 +1,78 @@
+// Copyright 2014 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 XFA_SRC_FGAS_CRT_FGAS_STREAM_H_
+#define XFA_SRC_FGAS_CRT_FGAS_STREAM_H_
+
+#include "core/include/fxcrt/fx_stream.h"
+#include "core/include/fxcrt/fx_system.h"
+
+class IFX_Stream;
+
+IFX_FileRead* FX_CreateFileRead(IFX_Stream* pBaseStream,
+                                FX_BOOL bReleaseStream = FALSE);
+IFX_FileRead* FX_CreateFileRead(IFX_BufferRead* pBufferRead,
+                                FX_FILESIZE iFileSize = -1,
+                                FX_BOOL bReleaseStream = TRUE);
+IFX_FileWrite* FX_CreateFileWrite(IFX_Stream* pBaseStream,
+                                  FX_BOOL bReleaseStream = FALSE);
+enum FX_STREAMACCESS {
+  FX_STREAMACCESS_Binary = 0x00,
+  FX_STREAMACCESS_Text = 0x01,
+  FX_STREAMACCESS_Read = 0x02,
+  FX_STREAMACCESS_Write = 0x04,
+  FX_STREAMACCESS_Truncate = 0x10,
+  FX_STREAMACCESS_Append = 0x20,
+  FX_STREAMACCESS_Create = 0x80,
+};
+
+enum FX_STREAMSEEK {
+  FX_STREAMSEEK_Begin = 0,
+  FX_STREAMSEEK_Current,
+  FX_STREAMSEEK_End,
+};
+
+class IFX_Stream {
+ public:
+  static IFX_Stream* CreateStream(IFX_FileRead* pFileRead, FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(IFX_FileWrite* pFileWrite, FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(const FX_WCHAR* pszFileName,
+                                  FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(uint8_t* pData,
+                                  int32_t length,
+                                  FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(IFX_BufferRead* pBufferRead,
+                                  FX_DWORD dwAccess,
+                                  int32_t iFileSize = -1,
+                                  FX_BOOL bReleaseBufferRead = TRUE);
+  static IFX_Stream* CreateTextStream(IFX_Stream* pBaseStream,
+                                      FX_BOOL bDeleteOnRelease);
+  virtual ~IFX_Stream() {}
+  virtual void Release() = 0;
+  virtual IFX_Stream* Retain() = 0;
+  virtual FX_DWORD GetAccessModes() const = 0;
+  virtual int32_t GetLength() const = 0;
+  virtual int32_t Seek(FX_STREAMSEEK eSeek, int32_t iOffset) = 0;
+  virtual int32_t GetPosition() = 0;
+  virtual FX_BOOL IsEOF() const = 0;
+  virtual int32_t ReadData(uint8_t* pBuffer, int32_t iBufferSize) = 0;
+  virtual int32_t ReadString(FX_WCHAR* pStr,
+                             int32_t iMaxLength,
+                             FX_BOOL& bEOS,
+                             int32_t const* pByteSize = NULL) = 0;
+  virtual int32_t WriteData(const uint8_t* pBuffer, int32_t iBufferSize) = 0;
+  virtual int32_t WriteString(const FX_WCHAR* pStr, int32_t iLength) = 0;
+  virtual void Flush() = 0;
+  virtual FX_BOOL SetLength(int32_t iLength) = 0;
+  virtual int32_t GetBOM(uint8_t bom[4]) const = 0;
+  virtual FX_WORD GetCodePage() const = 0;
+  virtual FX_WORD SetCodePage(FX_WORD wCodePage) = 0;
+  virtual IFX_Stream* CreateSharedStream(FX_DWORD dwAccess,
+                                         int32_t iOffset,
+                                         int32_t iLength) = 0;
+};
+
+#endif  // XFA_SRC_FGAS_CRT_FGAS_STREAM_H_