Widen suppression for MalwareDetailsTest::HttpCache further.

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 # running overnight and removing outdated bugs/suppressions.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 4318 matching lines @@
    Memcheck:Leak
    ...
    fun:_Znw*
    fun:_ZN14TestingProfile20CreateRequestContextEv
    fun:_ZN42MalwareDetailsTest_HTTPCacheNoEntries_Test8TestBodyEv
 }
 {
    bug_79865c
    Memcheck:Leak
    fun:_Znw*
-   fun:_ZN3net23ClientSocketPoolManagerC1EPNS_6NetLogEPNS_19ClientSocketFactoryEPNS_12HostResolverEPNS_12CertVerifierEPNS_13DnsRRResolverEPNS_24DnsCertProvenanceCheckerEPNS_18SSLHostInfoFactoryEPNS_12ProxyServiceEPNS_16SSLConfigServiceE
-   fun:_ZN3net18HttpNetworkSessionC1ERKNS0_6ParamsE
-   fun:_ZN21TestURLRequestContext4InitEv
-   fun:_ZN21TestURLRequestContextC1Ev
-   fun:_ZN27TestURLRequestContextGetter20GetURLRequestContextEv
-   fun:_ZN33MalwareDetailsTest_HTTPCache_Test8TestBodyEv
-}
-{
-   bug_79865d
-   Memcheck:Leak
-   fun:_Znw*
    ...
-   fun:_ZN3net15SpdySessionPoolC2EPNS_12HostResolverEPNS_16SSLConfigServiceE
-   fun:_ZN3net15SpdySessionPoolC1EPNS_12HostResolverEPNS_16SSLConfigServiceE
-   fun:_ZN3net18HttpNetworkSessionC2ERKNS0_6ParamsE
-   fun:_ZN3net18HttpNetworkSessionC1ERKNS0_6ParamsE
    fun:_ZN21TestURLRequestContext4InitEv
    fun:_ZN21TestURLRequestContextC2Ev
    fun:_ZN21TestURLRequestContextC1Ev
    fun:_ZN27TestURLRequestContextGetter20GetURLRequestContextEv
    fun:_ZN33MalwareDetailsTest_HTTPCache_Test8TestBodyEv
 }
 {
    bug_79933
    Memcheck:Leak
    fun:_Znw*
@@ skipping 97 matching lines @@
 }
 {
    bug_todo_getdelim
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    ...
    fun:call_init
    fun:_dl_init
 }