Fold LoadFile{Read|Write} back into constructors

The load file methods are always called right after creating the class.
This Cl moves their code up into the constructor and then changes the
other code to assume that the m_pFile{Read|Write} always exists.

Change-Id: I015abf71ea4804d02d4f6f94b97eb1e7855e1fc4
Reviewed-on: https://pdfium-review.googlesource.com/4110
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

1 files changed, 0 insertions, 124 deletions

diff --git a/xfa/fgas/crt/fgas_codepage.cpp b/xfa/fgas/crt/fgas_codepage.cpp
index cae2dd7234..c1a4322883 100644
--- a/xfa/fgas/crt/fgas_codepage.cpp
+++ b/xfa/fgas/crt/fgas_codepage.cpp
@@ -68,127 +68,3 @@ uint16_t FX_GetCodePageFromCharset(uint8_t charset) {
   } while (iStart <= iEnd);
   return 0xFFFF;
 }
-
-void FX_SwapByteOrder(wchar_t* pStr, int32_t iLength) {
-  ASSERT(pStr);
-
-  if (iLength < 0)
-    iLength = FXSYS_wcslen(pStr);
-
-  uint16_t wch;
-  if (sizeof(wchar_t) > 2) {
-    while (iLength-- > 0) {
-      wch = (uint16_t)*pStr;
-      wch = (wch >> 8) | (wch << 8);
-      wch &= 0x00FF;
-      *pStr++ = wch;
-    }
-    return;
-  }
-
-  while (iLength-- > 0) {
-    wch = (uint16_t)*pStr;
-    wch = (wch >> 8) | (wch << 8);
-    *pStr++ = wch;
-  }
-}
-
-void FX_UTF16ToWChar(void* pBuffer, int32_t iLength) {
-  ASSERT(pBuffer && iLength > 0);
-  if (sizeof(wchar_t) == 2)
-    return;
-
-  uint16_t* pSrc = static_cast<uint16_t*>(pBuffer);
-  wchar_t* pDst = static_cast<wchar_t*>(pBuffer);
-  while (--iLength >= 0)
-    pDst[iLength] = static_cast<wchar_t>(pSrc[iLength]);
-}
-
-int32_t FX_DecodeString(uint16_t wCodePage,
-                        const char* pSrc,
-                        int32_t* pSrcLen,
-                        wchar_t* pDst,
-                        int32_t* pDstLen,
-                        bool bErrBreak) {
-  if (wCodePage == FX_CODEPAGE_UTF8)
-    return FX_UTF8Decode(pSrc, pSrcLen, pDst, pDstLen);
-  return -1;
-}
-
-int32_t FX_UTF8Decode(const char* pSrc,
-                      int32_t* pSrcLen,
-                      wchar_t* pDst,
-                      int32_t* pDstLen) {
-  if (!pSrcLen || !pDstLen)
-    return -1;
-
-  int32_t iSrcLen = *pSrcLen;
-  if (iSrcLen < 1) {
-    *pSrcLen = *pDstLen = 0;
-    return 1;
-  }
-
-  int32_t iDstLen = *pDstLen;
-  bool bValidDst = (pDst && iDstLen > 0);
-  uint32_t dwCode = 0;
-  int32_t iPending = 0;
-  int32_t iSrcNum = 0;
-  int32_t iDstNum = 0;
-  int32_t iIndex = 0;
-  int32_t k = 1;
-  while (iIndex < iSrcLen) {
-    uint8_t byte = static_cast<uint8_t>(*(pSrc + iIndex));
-    if (byte < 0x80) {
-      iPending = 0;
-      k = 1;
-      iDstNum++;
-      iSrcNum += k;
-      if (bValidDst) {
-        *pDst++ = byte;
-        if (iDstNum >= iDstLen)
-          break;
-      }
-    } else if (byte < 0xc0) {
-      if (iPending < 1)
-        break;
-
-      iPending--;
-      dwCode |= (byte & 0x3f) << (iPending * 6);
-      if (iPending == 0) {
-        iDstNum++;
-        iSrcNum += k;
-        if (bValidDst) {
-          *pDst++ = dwCode;
-          if (iDstNum >= iDstLen)
-            break;
-        }
-      }
-    } else if (byte < 0xe0) {
-      iPending = 1;
-      k = 2;
-      dwCode = (byte & 0x1f) << 6;
-    } else if (byte < 0xf0) {
-      iPending = 2;
-      k = 3;
-      dwCode = (byte & 0x0f) << 12;
-    } else if (byte < 0xf8) {
-      iPending = 3;
-      k = 4;
-      dwCode = (byte & 0x07) << 18;
-    } else if (byte < 0xfc) {
-      iPending = 4;
-      k = 5;
-      dwCode = (byte & 0x03) << 24;
-    } else if (byte < 0xfe) {
-      iPending = 5;
-      k = 6;
-      dwCode = (byte & 0x01) << 30;
-    } else {
-      break;
-    }
-    iIndex++;
-  }
-  *pSrcLen = iSrcNum;
-  *pDstLen = iDstNum;
-  return 1;
-}