Update from https://crrev.com/315085

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
diff --git a/tools/valgrind/memcheck/suppressions.txt b/tools/valgrind/memcheck/suppressions.txt
index 579b481ea3d22c056e331a4e05ac2578685e8204..10849ae044aa23539ded62770d9e7b9e4392fc71 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -3401,10 +3401,10 @@
    bug_431213
    Memcheck:Leak
    fun:_Znw*
-   fun:_ZN3gin22CreateFunctionTemplateIFSsPN4mojo2js13HandleWrapperEEEEN2v85LocalINS6_16FunctionTemplateEEEPNS6_7IsolateEN4base8CallbackIT_EEi
-   fun:_ZN3gin12_GLOBAL__N_114CallbackTraitsIMN4mojo2js13HandleWrapperEFSsvEvE14CreateTemplateEPN2v87IsolateES6_
-   fun:_ZN3gin21ObjectTemplateBuilder9SetMethodIMN4mojo2js13HandleWrapperEFSsvEEERS0_RKN4base16BasicStringPieceISsEERKT_
-   fun:_ZN4mojo2js13HandleWrapper24GetObjectTemplateBuilderEPN2v87IsolateE
+   fun:_ZN3gin22CreateFunctionTemplateIF*LocalINS6_16FunctionTemplateEEEPNS6_7IsolateEN4base8CallbackIT_EEi
+   fun:_ZN3gin12_GLOBAL__N_114CallbackTraitsIMN*CreateTemplateEPN2v87IsolateES6_
+   fun:_ZN3gin21ObjectTemplateBuilder9SetMethodIMN*0_RKN4base16BasicStringPieceISsEERKT_
+   fun:_ZN*24GetObjectTemplateBuilderEPN2v87IsolateE
 }
 {
    bug_436110
@@ -3596,3 +3596,23 @@
    fun:_ZN4base12SimpleThread10ThreadMainEv
    fun:_ZN4base12_GLOBAL__N_110ThreadFuncEPv
 }
+{
+   bug_455732
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN4mojo7BindingINS_15ServiceProviderEE4BindENS_16ScopedHandleBaseINS_17MessagePipeHandleEEEPK15MojoAsyncWaiter
+   fun:_ZN4mojo7BindingINS_15ServiceProviderEE4BindENS_16InterfaceRequestIS1_EEPK15MojoAsyncWaiter
+   fun:_ZN7content19ServiceRegistryImpl4BindEN4mojo16InterfaceRequestINS1_15ServiceProviderEEE
+   fun:_ZN7content12_GLOBAL__N_120ApplicationSetupImpl24ExchangeServiceProvidersEN4mojo16InterfaceRequestINS2_15ServiceProviderEEENS2_12InterfacePtrIS4_EE
+   fun:_ZN7content20ApplicationSetupStub6AcceptEPN4mojo7MessageE
+   fun:_ZN4mojo8internal6Router21HandleIncomingMessageEPNS_7MessageE
+   fun:_ZN4mojo8internal6Router26HandleIncomingMessageThunk6AcceptEPNS_7MessageE
+   fun:_ZN7content32ApplicationSetupRequestValidator6AcceptEPN4mojo7MessageE
+   fun:_ZN4mojo8internal22MessageHeaderValidator6AcceptEPNS_7MessageE
+   fun:_ZN4mojo22ReadAndDispatchMessageENS_17MessagePipeHandleEPNS_15MessageReceiverEPb
+   fun:_ZN4mojo8internal9Connector17ReadSingleMessageEPi
+   fun:_ZN4mojo8internal9Connector24ReadAllAvailableMessagesEv
+   fun:_ZN4mojo8internal9Connector13OnHandleReadyEi
+   fun:_ZN4mojo8internal9Connector17CallOnHandleReadyEPvi
+   fun:_ZN4mojo8internal12_GLOBAL__N_113OnHandleReadyEPNS_6common13HandleWatcherEPFvPviES5_i
+}