Widen some suppressions to make Valgrind clean on x64

tools/valgrind/memcheck/suppressions.txt

 # There are four 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 # running overnight and removing outdated bugs/suppressions.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 876 matching lines @@
    ...
    fun:nss_Init
    fun:NSS_InitReadWrite
    ...
    fun:*13EnsureNSSInitEv
 }
 {
    bug_61585b
    Memcheck:Leak
    fun:malloc
-   fun:PORT_Alloc_Util
-   fun:sec_asn1e_allocate_item
-   fun:SEC_ASN1EncodeItem_Util
-   fun:sftkdb_encodeCipherText
-   fun:sftkdb_EncryptAttribute
-   fun:sftkdb_ChangePassword
-   fun:NSC_InitPIN
-   fun:PK11_InitPin
-   ...
-   fun:_ZN4base13OpenTestNSSDBERK8FilePathPKc
-}
-{
-   bug_61585c
-   Memcheck:Leak
-   fun:malloc
    fun:PL_ArenaAllocate
    fun:PORT_ArenaAlloc_Util
 }
 {
    # PR_GetCurrentThread allocates a PRThread structure and stores it in
    # thread-specific data.  The PRThread structure is freed by the
    # PR_DetachThread call in CertVerifierWorker::Run or when the thread
    # terminates.  Since we do not shut down worker threads, the PRThread
    # structure created for a worker thread may be leaked at Chrome shutdown
    # if the worker thread did not make it to the PR_DetachThread call.
@@ skipping 910 matching lines @@
    obj:*
    obj:*
    obj:*
    fun:secmod_ModuleInit
 }
 {
    bug_32624_c
    Memcheck:Leak
    ...
    fun:malloc
-   fun:PR_Malloc
+   ...
    fun:PORT_Alloc_Util
    ...
    fun:PK11_InitPin
 }
 {
    bug_32624_d
    Memcheck:Leak
    fun:malloc
    fun:PR_Malloc
    fun:PKIX_PL_Malloc
@@ skipping 1154 matching lines @@
    fun:_Znw*
    fun:_ZN3IPC11SyncMessage13GenerateReplyEPKNS_7MessageE
    fun:_ZN3IPC17SyncMessageSchemaI6Tuple1I21PluginMsg_Init_ParamsES1_IRbEE32DispatchDelayReplyWithSendParamsIN13PluginChannel13MessageFilterEMS9_FvRKS2_PNS_7MessageEEEEbbRKS3_PKSC_PT_T0_
    fun:_ZN14PluginMsg_Init18DispatchDelayReplyIN13PluginChannel13MessageFilterEMS2_FvRK21PluginMsg_Init_ParamsPN3IPC7MessageEEEEbPKS7_PT_T0_
    fun:_ZN13PluginChannel13MessageFilter17OnMessageReceivedERKN3IPC7MessageE
 }
 {
    Bug_70062
    Memcheck:Leak
    fun:calloc
-   fun:PR_Calloc
+   ...
    fun:PR_NewLock
    ...
    fun:InitSessionCacheLocks
    fun:initSessionCacheLocksLazily
    fun:PR_CallOnce
    fun:ssl_InitSessionCacheLocks
    fun:lock_cache
    fun:ssl_LookupSID
    fun:ssl2_BeginClientHandshake
    fun:ssl_Do1stHandshake
@@ skipping 1964 matching lines @@
 }
 {
    bug_todo_getdelim2
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }