Description of problem:
This happens when chrome (dev) is started.
SELinux is preventing /opt/google/chrome/chrome-sandbox from 'append' accesses on the unix_stream_socket unix_stream_socket.

*****  Plugin leaks (86.2 confidence) suggests  ******************************

If you want to ignore chrome-sandbox trying to append access the unix_stream_socket unix_stream_socket, because you believe it should not need this access.
Then you should report this as a bug.  
You can generate a local policy module to dontaudit this access.
Do
# grep /opt/google/chrome/chrome-sandbox /var/log/audit/audit.log | audit2allow -D -M mypol
# semodule -i mypol.pp

*****  Plugin catchall (14.7 confidence) suggests  ***************************

If you believe that chrome-sandbox should be allowed append access on the unix_stream_socket unix_stream_socket by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep chrome-sandbox /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c
                              0.c1023
Target Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Objects                unix_stream_socket [ unix_stream_socket ]
Source                        chrome-sandbox
Source Path                   /opt/google/chrome/chrome-sandbox
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           google-chrome-unstable-28.0.1485.0-195393.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-91.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.8.8-202.fc18.x86_64 #1 SMP Wed
                              Apr 17 23:25:17 UTC 2013 x86_64 x86_64
Alert Count                   1662
First Seen                    2013-04-04 15:03:27 MSK
Last Seen                     2013-04-24 02:46:30 MSK
Local ID                      39c33839-82b9-40ff-bc87-d7f986590ec9

Raw Audit Messages
type=AVC msg=audit(1366757190.190:1241): avc:  denied  { append } for  pid=4362 comm="chrome-sandbox" path="socket:[22017]" dev="sockfs" ino=22017 scontext=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=unix_stream_socket


type=AVC msg=audit(1366757190.190:1241): avc:  denied  { append } for  pid=4362 comm="chrome-sandbox" path="socket:[22017]" dev="sockfs" ino=22017 scontext=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=unix_stream_socket


type=SYSCALL msg=audit(1366757190.190:1241): arch=x86_64 syscall=execve success=yes exit=0 a0=7f1758a69558 a1=3ab750d4dc60 a2=7f1758a7ba80 a3=7f1752acd040 items=0 ppid=3112 pid=4362 auid=1000 uid=1000 gid=1000 euid=0 suid=0 fsuid=0 egid=1000 sgid=1000 fsgid=1000 ses=1 tty=(none) comm=chrome-sandbox exe=/opt/google/chrome/chrome-sandbox subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 key=(null)

Hash: chrome-sandbox,chrome_sandbox_t,unconfined_t,unix_stream_socket,append

audit2allow

#============= chrome_sandbox_t ==============
allow chrome_sandbox_t unconfined_t:unix_stream_socket append;

audit2allow -R
require {
	type unconfined_t;
	type chrome_sandbox_t;
	class unix_stream_socket append;
}

#============= chrome_sandbox_t ==============
allow chrome_sandbox_t unconfined_t:unix_stream_socket append;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.8.8-202.fc18.x86_64
type:           libreport