Valgrind: Suppress a leak in CrxUpdateService::ProcessPendingItems.

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
===================================================================
--- tools/valgrind/memcheck/suppressions.txt	(revision 106108)
+++ tools/valgrind/memcheck/suppressions.txt	(working copy)
@@ -4808,6 +4808,13 @@
    fun:_ZN3net9x509_util20CreateSelfSignedCertEP18SECKEYPublicKeyStrP19SECKEYPrivateKeyStrRKSsjN4base9TimeDeltaE
    fun:_ZN3net15X509Certificate16CreateSelfSignedEPN6crypto13RSAPrivateKeyERKSsjN4base9TimeDeltaE
 }
+{
+   bug_100777
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN12_GLOBAL__N_119MakeContextDelegateI16CrxUpdateServiceNS1_13UpdateContextEEEPN10URLFetcher8DelegateEPT_PT0_
+   fun:_ZN16CrxUpdateService19ProcessPendingItemsEv
+}
 
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 # 4. These only occur on our Google workstations