Direct host output to a specific log file.

remoting/host/installer/mac/Scripts/remoting_postflight.sh

 #!/bin/sh
 
 # Copyright (c) 2012 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.
 
 # Version = @@VERSION@@
 
 HELPERTOOLS=/Library/PrivilegedHelperTools
 NAME=org.chromium.chromoting
 CONFIG_FILE="$HELPERTOOLS/$NAME.json"
 PLIST=/Library/LaunchAgents/org.chromium.chromoting.plist
 PAM_CONFIG=/etc/pam.d/chrome-remote-desktop
 ENABLED_FILE="$HELPERTOOLS/$NAME.me2me_enabled"
 ENABLED_FILE_BACKUP="$ENABLED_FILE.backup"
+LOG_FILE=/var/log/org.chromium.chromoting.log
 
 KSADMIN=/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle/Contents/MacOS/ksadmin
 KSUPDATE=https://tools.google.com/service/update2
 KSPID=com.google.chrome_remote_desktop
 KSPVERSION=@@VERSION@@
 
 trap on_error ERR
 
 function on_error {
   logger An error occurred during Chrome Remote Desktop setup.
@@ skipping 30 matching lines @@
 password   required   pam_deny.so
 session    required   pam_deny.so
 
 # This file is auto-updated by the Chrome Remote Desktop installer.
 $CONTROL_LINE
 EOF
 else
   logger PAM config has local edits. Not updating.
 fi
 
+# Create the log file (if this isn't created ahead of time
+# then directing output from the service there won't work).
+# Make sure admins have write privileges (CRD users are
+# typically admins)
+touch "$LOG_FILE"
+chown :admin "$LOG_FILE"
+chmod 660 "$LOG_FILE"
+
 # Load the service.
 # The launchctl command we'd like to run:
 #   launchctl load -w -S Aqua $PLIST
 # However, since we're installing as an admin, the launchctl command is run
 # as if it had a sudo prefix, which means it tries to load the service in
 # system rather than user space.
 # To launch the service in user space, we need to get the current user (using
 # ps and grepping for the loginwindow.app) and run the launchctl cmd as that
 # user (using launchctl bsexec).
 set `ps aux | grep loginwindow.app | grep -v grep`
 USERNAME=$1
 USERID=$2
 if [[ -n "$USERNAME" && -n "$USERID" ]]; then
   launchctl bsexec "$USERID" sudo -u "$USERNAME" launchctl load -w -S Aqua "$PLIST"
 fi