Revert of Initial version of new file wrapper

webrtc/base/file_posix.cc

Index: webrtc/base/file_posix.cc
diff --git a/webrtc/base/file_posix.cc b/webrtc/base/file_posix.cc
deleted file mode 100644
index 0dad56deb18a177ca8df54a1b47a32068fcacd69..0000000000000000000000000000000000000000
--- a/webrtc/base/file_posix.cc
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/base/file.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-namespace rtc {
-
-File File::Open(const std::string& path) {
-  return File(::open(path.c_str(), O_RDWR));
-}
-
-size_t File::Write(const uint8_t* data, size_t length) {
-  size_t total_written = 0;
-  do {
-    ssize_t written;
-    do {
-      written = ::write(file_, data + total_written, length - total_written);
-    } while (written == -1 && errno == EINTR);
-    if (written == -1)
-      break;
-    total_written += written;
-  } while (total_written < length);
-  return total_written;
-}
-
-size_t File::Read(uint8_t* buffer, size_t length) {
-  size_t total_read = 0;
-  do {
-    ssize_t read;
-    do {
-      read = ::read(file_, buffer + total_read, length - total_read);
-    } while (read == -1 && errno == EINTR);
-    if (read == -1)
-      break;
-    total_read += read;
-  } while (total_read < length);
-  return total_read;
-}
-
-size_t File::WriteAt(const uint8_t* data, size_t length, size_t offset) {
-  size_t total_written = 0;
-  do {
-    ssize_t written;
-    do {
-      written = ::pwrite(file_, data + total_written, length - total_written,
-                         offset + total_written);
-    } while (written == -1 && errno == EINTR);
-    if (written == -1)
-      break;
-    total_written += written;
-  } while (total_written < length);
-  return total_written;
-}
-
-size_t File::ReadAt(uint8_t* buffer, size_t length, size_t offset) {
-  size_t total_read = 0;
-  do {
-    ssize_t read;
-    do {
-      read = ::pread(file_, buffer + total_read, length - total_read,
-                     offset + total_read);
-    } while (read == -1 && errno == EINTR);
-    if (read == -1)
-      break;
-    total_read += read;
-  } while (total_read < length);
-  return total_read;
-}
-
-bool File::Seek(size_t offset) {
-  static_assert(sizeof(size_t) <= sizeof(off_t), "size_t must fit in off_t");
-  return lseek(file_, off_t{offset}, SEEK_SET) != ((off_t)-1);
-}
-
-bool File::Close() {
-  if (file_ == rtc::kInvalidPlatformFileValue)
-    return false;
-  bool ret = close(file_) == 0;
-  file_ = rtc::kInvalidPlatformFileValue;
-  return ret;
-}
-
-}  // namespace rtc