generalize suppression

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 # running overnight and removing outdated bugs/suppressions.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 2843 matching lines @@
    fun:_Znw*
    fun:_ZN13NPObjectProxy10NPAllocateEP4_NPPP7NPClass
    fun:_NPN_CreateObject
    fun:_ZN6WebKit11WebBindings12createObjectEP4_NPPP7NPClass
 }
 {
    Bug_69934_b
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN3IPC11SyncMessage13GenerateReplyEPKNS_7MessageE
-   fun:_ZN3IPC17SyncMessageSchemaI6Tuple1IbES1_IRSt6vectorIN6webkit13WebPluginInfoESaIS5_EEEE32DispatchDelayReplyWithSendParamsI19RenderMessageFilterMSC_FvbPNS_7MessageEEEEbbRKS2_PKSD_PT_T0_
-   fun:_ZN22ViewHostMsg_GetPlugins18DispatchDelayReplyI19RenderMessageFilterMS1_FvbPN3IPC7MessageEEEEbPKS3_PT_T0_
-   fun:_ZN19RenderMessageFilter17OnMessageReceivedERKN3IPC7MessageEPb
+   fun:_ZN3IPC17SyncMessageSchema*
 }
 {
    bug_70327_a
    Memcheck:Leak
    ...
    fun:FcCharSetFindLeafCreate
    fun:FcCharSetAddLeaf
    fun:FcCharSetMerge
    fun:FcFontSetSort
    fun:FcFontSort
@@ skipping 2769 matching lines @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }