8285915: failure_handler: gather the contents of /etc/hosts file

Reviewed-by: dfuchs, erikj

Author: jaikiran

test/failure_handler/src/share/conf/linux.properties

@@ -77,7 +77,7 @@ environment=\
         memory.vmstat.slabinfo memory.vmstat.disk \
   files \
   locks \
-  net.sockets net.statistics net.ifconfig \
+  net.sockets net.statistics net.ifconfig net.hostsfile \
   screenshot
 ################################################################################
 users.current.app=id
@@ -124,6 +124,9 @@ net.statistics.args=-sv
 net.ifconfig.app=ifconfig
 net.ifconfig.args=-a
 
+net.hostsfile.app=cat
+net.hostsfile.args=/etc/hosts
+
 screenshot.app=bash
 screenshot.args=-c\0\
     echo '\

test/failure_handler/src/share/conf/mac.properties

@@ -83,7 +83,7 @@ environment=\
   process.ps process.top \
   memory.vmstat \
   files \
-  net.netstat.av net.netstat.aL net.netstat.m net.netstat.s net.ifconfig \
+  net.netstat.av net.netstat.aL net.netstat.m net.netstat.s net.ifconfig net.hostsfile \
   scutil.nwi scutil.proxy \
   screenshot
 ################################################################################
@@ -125,6 +125,9 @@ net.netstat.s.args=-s
 net.ifconfig.app=ifconfig
 net.ifconfig.args=-a
 
+net.hostsfile.app=cat
+net.hostsfile.args=/etc/hosts
+
 scutil.app=scutil
 scutil.nwi.args=--nwi
 scutil.proxy.args=--proxy

test/failure_handler/src/share/conf/windows.properties

@@ -72,7 +72,7 @@ environment=\
   memory.free memory.vmstat.default memory.vmstat.statistics \
         memory.vmstat.slabinfo memory.vmstat.disk \
   files \
-  net.sockets net.statistics net.ipconfig \
+  net.sockets net.statistics net.ipconfig net.hostsfile \
   screenshot
 ################################################################################
 users.current.app=id
@@ -121,6 +121,10 @@ net.statistics.args=-s -e
 net.ipconfig.app=ipconfig
 net.ipconfig.args=/all
 
+net.hostsfile.app=bash
+net.hostsfile.args.delimiter=\0
+net.hostsfile.args=-c\0cat $WINDIR/System32/drivers/etc/hosts
+
 screenshot.app=bash
 screenshot.args=-c\0\
     echo '\