Direct host output to a specific log file.

remoting/host/constants_mac.cc

Index: remoting/host/constants_mac.cc
===================================================================
--- remoting/host/constants_mac.cc	(revision 181302)
+++ remoting/host/constants_mac.cc	(working copy)
@@ -12,6 +12,8 @@
 #define HELPER_TOOLS_DIR "/Library/PrivilegedHelperTools/"
 #define LAUNCH_AGENTS_DIR "/Library/LaunchAgents/"
 #define PREFERENCE_PANES_DIR "/Library/PreferencePanes/"
+#define LOG_DIR "/var/log/"
+#define LOG_CONFIG_DIR "/etc/newsyslog.d/"
 
 const char kServiceName[] = SERVICE_NAME;
 
@@ -31,6 +33,9 @@
 
 const char kServicePlistPath[] = LAUNCH_AGENTS_DIR SERVICE_NAME ".plist";
 
+const char kLogFilePath[] = LOG_DIR SERVICE_NAME ".log";
+const char kLogFileConfigPath[] = LOG_CONFIG_DIR SERVICE_NAME ".conf";
+
 const char kBrandedUninstallerPath[] = APPLICATIONS_DIR
     "Chrome Remote Desktop Host Uninstaller.app";
 const char kUnbrandedUninstallerPath[] = APPLICATIONS_DIR