Revert 82319 - Leak in TestURLRequestContextSuppresses leak in TestURLRequestContext.BUG=80018TES...

tools/valgrind/memcheck/suppressions.txt

 # There are three kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 4377 matching lines @@
    Memcheck:Leak
    fun:_Znw*
    fun:*webkit_fileapi_file_system_url_request_job_unittest.cc*SetUpEv
 }
 {
    bug_80002b
    Memcheck:Leak
    fun:_Znw*
    fun:*webkit_fileapi_file_system_dir_url_request_job_unittest.cc*SetUpEv
 }
-{
-   bug_80018
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN3net23ClientSocketPoolManagerC1EPNS_6NetLogEPNS_19ClientSocketFactoryEPNS_12HostResolverEPNS_12CertVerifierEPNS_13DnsRRResolverEPNS_24DnsCertProvenanceCheckerEPNS_18SSLHostInfoFactoryEPNS_12ProxyServiceEPNS_16SSLConfigServiceE
-   fun:_ZN3net18HttpNetworkSessionC1ERKNS0_6ParamsE
-   fun:_ZN21TestURLRequestContext4InitEv
-   fun:_ZN21TestURLRequestContextC1Ev
-   fun:_ZN27TestURLRequestContextGetter20GetURLRequestContextEv
-}
 
 #-----------------------------------------------------------------------
 # These only occur on our Google workstations
 {
    bug_todo_freeres
    Memcheck:Free
    fun:free
    fun:__libc_freeres
    fun:_vgnU_freeres
    fun:_Exit
    fun:exit
 }
 {
    bug_todo_getdelim
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    ...
    fun:call_init
    fun:_dl_init
 }