Widen suppression

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 # running overnight and removing outdated bugs/suppressions.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 4607 matching lines @@
    bug_83949_b
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN9__gnu_cxx13new_allocatorISt13_Rb_tree_nodeIN3net10IPEndPointEEE8allocateEjPKv
    fun:_ZNSt8_Rb_treeIN3net10IPEndPointES1_St9_IdentityIS1_ESt4lessIS1_ESaIS1_EE11_M_get_nodeEv
    fun:_ZNSt8_Rb_treeIN3net10IPEndPointES1_St9_IdentityIS1_ESt4lessIS1_ESaIS1_EE14_M_create_nodeERKS1_
    fun:_ZNSt8_Rb_treeIN3net10IPEndPointES1_St9_IdentityIS1_ESt4lessIS1_ESaIS1_EE10_M_insert_EPKSt18_Rb_tree_node_baseSA_RKS1_
    fun:_ZNSt8_Rb_treeIN3net10IPEndPointES1_St9_IdentityIS1_ESt4lessIS1_ESaIS1_EE16_M_insert_uniqueERKS1_
    fun:_ZNSt3setIN3net10IPEndPointESt4lessIS1_ESaIS1_EE6insertERKS1_
    fun:_ZN16P2PSocketHostUdp15DidCompleteReadEi
+   ...
    fun:_ZN16P2PSocketHostUdp6OnRecvEi
    fun:_Z16DispatchToMethodI16P2PSocketHostUdpMS0_FviEiEvPT_T0_RK6Tuple1IT1_E
    fun:_ZN12CallbackImplI16P2PSocketHostUdpMS0_FviE6Tuple1IiEE13RunWithParamsERKS4_
    fun:_ZN14CallbackRunnerI6Tuple1IiEE3RunIiEEvRKT_
    fun:_ZN3net17UDPSocketLibevent14DoReadCallbackEi
    fun:_ZN3net17UDPSocketLibevent15DidCompleteReadEv
-   fun:_ZN3net17UDPSocketLibevent11ReadWatcher28OnFileCanReadWithoutBlockingEi
 }
 {
    bug_83944_a
    Memcheck:Leak
    ...
    fun:_ZN7fileapi23FileSystemOperationTest5SetUpEv
 }
 {
    bug_83944_b
    Memcheck:Addr1
@@ skipping 44 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
 }