Revert of Move RedirectChromeLogging to src/chromeos.

chrome/browser/chromeos/logging.cc

-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/chromeos/logging.h"
-
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "chrome/common/logging_chrome.h"
-
-namespace logging {
-
-void RedirectChromeLogging(const base::CommandLine& command_line) {
-  // This should be true for exactly the period between the end of
-  // InitChromeLogging() and the beginning of CleanupChromeLogging().
-  static bool chrome_logging_redirected_ = false;
-  if (chrome_logging_redirected_) {
-    // TODO: Support multiple active users. http://crbug.com/230345
-    LOG(WARNING) << "NOT redirecting logging for multi-profiles case.";
-    return;
-  }
-
-  DCHECK(!chrome_logging_redirected_)
-      << "Attempted to redirect logging when it was already initialized.";
-
-  // Redirect logs to the session log directory, if set.  Otherwise
-  // defaults to the profile dir.
-  const base::FilePath log_path = GetSessionLogFile(command_line);
-
-  // Always force a new symlink when redirecting.
-  const base::FilePath target_path = SetUpSymlinkIfNeeded(log_path, true);
-
-  // ChromeOS always logs through the symlink, so it shouldn't be
-  // deleted if it already exists.
-  logging::LoggingSettings settings;
-  settings.logging_dest = DetermineLoggingDestination(command_line);
-  settings.log_file = log_path.value().c_str();
-  if (!logging::InitLogging(settings)) {
-    DLOG(ERROR) << "Unable to initialize logging to " << log_path.value();
-    RemoveSymlinkAndLog(log_path, target_path);
-  } else {
-    chrome_logging_redirected_ = true;
-  }
-}
-
-}  // namespace logging