Merge to XFA: Kill FX_HFILE

(cherry picked from commit c8eeed31f217d99a706b0cbf5e4ce0bcc12beb64)
Review URL: https://codereview.chromium.org/1259123008 .

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1256103006 .
diff --git a/core/include/fxcrt/fx_stream.h b/core/include/fxcrt/fx_stream.h
index 405d5d0..b6fdcfc 100644
--- a/core/include/fxcrt/fx_stream.h
+++ b/core/include/fxcrt/fx_stream.h
@@ -15,9 +15,6 @@
 FX_BOOL FX_GetNextFile(void* handle, CFX_WideString& filename, FX_BOOL& bFolder);
 void FX_CloseFolder(void* handle);
 FX_WCHAR FX_GetFolderSeparator();
-typedef struct FX_HFILE_ {
-    void* pData;
-}* FX_HFILE;
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 #define FX_FILESIZE			int32_t
 #else
@@ -43,18 +40,6 @@
 #define FX_FILEMODE_Write		0
 #define FX_FILEMODE_ReadOnly	1
 #define FX_FILEMODE_Truncate	2
-FX_HFILE	FX_File_Open(const CFX_ByteStringC& fileName, FX_DWORD dwMode);
-FX_HFILE	FX_File_Open(const CFX_WideStringC& fileName, FX_DWORD dwMode);
-void		FX_File_Close(FX_HFILE hFile);
-FX_FILESIZE	FX_File_GetSize(FX_HFILE hFile);
-FX_FILESIZE	FX_File_GetPosition(FX_HFILE hFile);
-FX_FILESIZE	FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos);
-size_t		FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer);
-size_t		FX_File_ReadPos(FX_HFILE hFile, void* pBuffer, size_t szBuffer, FX_FILESIZE pos);
-size_t		FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuffer);
-size_t		FX_File_WritePos(FX_HFILE hFile, const void* pBuffer, size_t szBuffer, FX_FILESIZE pos);
-FX_BOOL		FX_File_Flush(FX_HFILE hFile);
-FX_BOOL		FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile);
 FX_BOOL		FX_File_Exist(const CFX_ByteStringC& fileName);
 FX_BOOL		FX_File_Exist(const CFX_WideStringC& fileName);
 FX_BOOL		FX_File_Delete(const CFX_ByteStringC& fileName);
diff --git a/core/src/fxcrt/fx_extension.cpp b/core/src/fxcrt/fx_extension.cpp
index 9a165fd..4457317 100644
--- a/core/src/fxcrt/fx_extension.cpp
+++ b/core/src/fxcrt/fx_extension.cpp
@@ -13,75 +13,6 @@
 #include <ctime>
 #endif
 
-FX_HFILE FX_File_Open(const CFX_ByteStringC& fileName, FX_DWORD dwMode)
-{
-    IFXCRT_FileAccess* pFA = FXCRT_FileAccess_Create();
-    if (pFA && !pFA->Open(fileName, dwMode)) {
-        pFA->Release();
-        return NULL;
-    }
-    return (FX_HFILE)pFA;
-}
-FX_HFILE FX_File_Open(const CFX_WideStringC& fileName, FX_DWORD dwMode)
-{
-    IFXCRT_FileAccess* pFA = FXCRT_FileAccess_Create();
-    if (pFA && !pFA->Open(fileName, dwMode)) {
-        pFA->Release();
-        return NULL;
-    }
-    return (FX_HFILE)pFA;
-}
-void FX_File_Close(FX_HFILE hFile)
-{
-    FXSYS_assert(hFile != NULL);
-    ((IFXCRT_FileAccess*)hFile)->Close();
-    ((IFXCRT_FileAccess*)hFile)->Release();
-}
-FX_FILESIZE FX_File_GetSize(FX_HFILE hFile)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->GetSize();
-}
-FX_FILESIZE FX_File_GetPosition(FX_HFILE hFile)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->GetPosition();
-}
-FX_FILESIZE FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->SetPosition(pos);
-}
-size_t FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->Read(pBuffer, szBuffer);
-}
-size_t FX_File_ReadPos(FX_HFILE hFile, void* pBuffer, size_t szBuffer, FX_FILESIZE pos)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->ReadPos(pBuffer, szBuffer, pos);
-}
-size_t FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuffer)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->Write(pBuffer, szBuffer);
-}
-size_t FX_File_WritePos(FX_HFILE hFile, const void* pBuffer, size_t szBuffer, FX_FILESIZE pos)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->WritePos(pBuffer, szBuffer, pos);
-}
-FX_BOOL FX_File_Flush(FX_HFILE hFile)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->Flush();
-}
-FX_BOOL FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile)
-{
-    FXSYS_assert(hFile != NULL);
-    return ((IFXCRT_FileAccess*)hFile)->Truncate(szFile);
-}
 IFX_FileAccess* FX_CreateDefaultFileAccess(const CFX_WideStringC& wsPath)
 {
 	if (wsPath.GetLength() == 0)