Widen a suppression for a memory leak in remoting tests

BUG=46678
TBR=glider
Review URL: http://codereview.chromium.org/3192018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57321 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -3494,7 +3494,7 @@
    bug_46678
    Memcheck:Leak
    fun:_Znw*
-   fun:_Z11NewCallbackIN8remoting14SessionManagerEPNS0_11HostMessageEiEPN9Callback2IT0_T1_E4TypeEPT_MSA_FvS5_S6_E
+   fun:_Z11NewCallbackIN8remoting14SessionManager*
    fun:_ZN8remoting14SessionManager8DoEncodeE13scoped_refptrINS_11CaptureDataEE
    fun:_Z16DispatchToMethodIN8remoting14SessionManagerEMS1_Fv13scoped_refptrINS0_11CaptureDataEEES4_EvPT_T0_RK6Tuple1IT1_E
    fun:_ZN14RunnableMethodIN8remoting14SessionManagerEMS1_Fv13scoped_refptrINS0_11CaptureDataEEE6Tuple1IS4_EE3RunEv