Leaks found in UI tests including ResourceMessageFilter::OnMessageRec…

…eived

Suppresses leaks apparently introduced in revision 54981.  http://codereview.chromium.org/3035035

BUG=51218
TEST=Valgrind should go green.

Review URL: http://codereview.chromium.org/3075021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54995 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -3916,3 +3916,15 @@
    fun:_Znw*
    fun:_ZN56PrefValueStoreTest_TestRefreshPolicyPrefsCompletion_Test8TestBodyEv
 }
+{
+   bug_51218
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN3IPC11SyncMessage13GenerateReplyEPKNS_7MessageE
+   fun:_ZN3IPC16MessageWithReplyI6Tuple3I4GURLSsSsE6Tuple2IRNS_13ChannelHandleER13WebPluginInfoEE18DispatchDelayReplyI21ResourceMessageFilterMSC_FvRKS2_RKSsSG_PNS_7MessageEEEEbPKSH_PT_T0_
+   fun:_ZN21ResourceMessageFilter17OnMessageReceivedERKN3IPC7MessageE
+   fun:_ZN3IPC12ChannelProxy7Context10TryFiltersERKNS_7MessageE
+   fun:_ZN3IPC11SyncChannel11SyncContext17OnMessageReceivedERKNS_7MessageE
+   fun:_ZN3IPC7Channel11ChannelImpl23ProcessIncomingMessagesEv
+   fun:_ZN3IPC7Channel11ChannelImpl28OnFileCanReadWithoutBlockingEi
+}