Add support for base::Closure in the MessageLoop.

tools/valgrind/memcheck/suppressions_mac.txt

 # There are three kinds of suppressions in this file:
 # 1. Third party stuff we have no control over.
 #
 # 2. Intentional unit test errors, 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.
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 354 matching lines @@
    fun:_ZN19WebSharedWorkerStub9OnConnectEii
    fun:_Z16DispatchToMethodI19WebSharedWorkerStubMS0_FviiEiiEvPT_T0_RK6Tuple2IT1_T2_E
    fun:_ZN3IPC16MessageWithTupleI6Tuple2IiiEE8DispatchI19WebSharedWorkerStubMS5_FviiEEEbPKNS_7MessageEPT_T0_
    fun:_ZN19WebSharedWorkerStub17OnMessageReceivedERKN3IPC7MessageE
    fun:_ZN13MessageRouter12RouteMessageERKN3IPC7MessageE
    fun:_ZN13MessageRouter17OnMessageReceivedERKN3IPC7MessageE
    fun:_ZN11ChildThread17OnMessageReceivedERKN3IPC7MessageE
    fun:_ZN3IPC12ChannelProxy7Context17OnDispatchMessageERKNS_7MessageE
    fun:_Z16DispatchToMethodIN3IPC12ChannelProxy7ContextEMS2_FvRKNS0_7MessageEES3_EvPT_T0_RK6Tuple1IT1_E
    fun:_ZN14RunnableMethodIN3IPC12ChannelProxy7ContextEMS2_FvRKNS0_7MessageEE6Tuple1IS3_EE3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop6DoWorkEv
    fun:_ZN4base18MessagePumpDefault3RunEPNS_11MessagePump8DelegateE
    fun:_ZN11MessageLoop11RunInternalEv
    fun:_ZN11MessageLoop10RunHandlerEv
 }
 {
    bug_28847a
    Memcheck:Leak
    fun:_Znw*
@@ skipping 179 matching lines @@
 }
 {
   bug_40659
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN19extension_file_util13LoadExtensionERK8FilePathbPSs
    fun:_ZN12CrxInstaller15CompleteInstallEv
    fun:_Z16DispatchToMethodI12CrxInstallerMS0_FvvEEvPT_T0_RK6Tuple0
    fun:_ZN14RunnableMethodI12CrxInstallerMS0_FvvE6Tuple0E3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop6DoWorkEv
    fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
    fun:_ZN11MessageLoop11RunInternalEv
    fun:_ZN11MessageLoop10RunHandlerEv
 }
 {
    bug_46186_a
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN12HALCADClient19AddPropertyListenerEmPK26AudioObjectPropertyAddressPFlmmS2_PvES3_
    fun:_ZN16HALDefaultDevice22InstallServerListenersEv
    fun:_ZN16HALDefaultDevice10InitializeEv
    fun:_ZN9HALSystem16CheckOutInstanceEv
    fun:AudioObjectAddPropertyListener
    fun:_ZN10AQMEDeviceC2EmPK27AudioStreamBasicDescriptionPK18AudioChannelLayout
    fun:_Z11NewAQIONodembPK27AudioStreamBasicDescriptionPK18AudioChannelLayout
    fun:_ZN15AQIONodeManager13_FindAQIONodeEmbb
    fun:_ZN15AQIONodeManager12FindAQIONodeEmbb
    fun:_ZN16AudioQueueObject15DoIONodeConnectERK25AudioQueueStreamSpecifierPK27AudioStreamBasicDescriptionPK18AudioChannelLayout
    fun:_ZN16AudioQueueObject13EnqueueBufferEP16AudioQueueBufferjPK28AudioStreamPacketDescriptionjjjPK24AudioQueueParameterEventRK11AQTimeStampPS8_
    fun:AQServer_EnqueueBuffer
    fun:AudioQueueEnqueueBufferWithParameters
    fun:AudioQueueEnqueueBuffer
    fun:_ZN28PCMQueueOutAudioOutputStream5StartEPN17AudioOutputStream19AudioSourceCallbackE
    fun:_ZN5media21AudioOutputController6DoPlayEv
    fun:_ZN14RunnableMethodIN5media21AudioOutputControllerEMS1_FvvE6Tuple0E3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop6DoWorkEv
    fun:_ZN4base18MessagePumpDefault3RunEPNS_11MessagePump8DelegateE
 }
 {
    bug_46186_b
    Memcheck:Leak
    fun:malloc_zone_malloc
    fun:_ZN4base12_GLOBAL__N_137oom_killer_cfallocator_system_defaultElmPv
    fun:_CFRuntimeCreateInstance
@@ skipping 171 matching lines @@
    fun:CGColorTransformConvertData
 }
 {
    bug_52681_a
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN16ChildProcessHost13CreateChannelEv
    fun:_ZN18UtilityProcessHost12StartProcessERK8FilePath
    fun:_ZN18UtilityProcessHost22StartExtensionUnpackerERK8FilePath
    fun:_ZN14RunnableMethodI26SandboxedExtensionUnpackerMS0_FvRK8FilePathE6Tuple1IS1_EE3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
 }
 {
    bug_52681_b
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN16ChildProcessHost13CreateChannelEv
    fun:_ZN18UtilityProcessHost12StartProcessERK8FilePath
    fun:_ZN18UtilityProcessHost22StartExtensionUnpackerERK8FilePath
    fun:_ZN26SandboxedExtensionUnpacker22StartProcessOnIOThreadERK8FilePath
    fun:_Z16DispatchToMethodI26SandboxedExtensionUnpackerMS0_FvRK8FilePathES1_EvPT_T0_RK6Tuple1IT1_E
    fun:_ZN14RunnableMethodI26SandboxedExtensionUnpackerMS0_FvRK8FilePathE6Tuple1IS1_EE3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
 }
 {
    bug_53742_a
    Memcheck:Cond
    ...
    fun:_ZN16AudioQueueObject12ConvertInputEP9AQCommandRmb
    fun:_ZN16AudioQueueObject12RunConverterEi
    fun:_ZN18AQConverterManager17AQConverterThread3RunEv
    fun:_ZN18AQConverterManager17AQConverterThread20ConverterThreadEntryEPv
    fun:_ZN9CAPThread5EntryEPS_
@@ skipping 340 matching lines @@
    fun:_ZN6policy30ConfigurationPolicyProviderMacC1EPKNS_27ConfigurationPolicyProvider20PolicyDefinitionListE
    fun:_ZN6policy33ConfigurationPolicyProviderKeeper29CreateManagedPlatformProviderEv
    fun:_ZN6policy33ConfigurationPolicyProviderKeeperC2Ev
    fun:_ZN6policy33ConfigurationPolicyProviderKeeperC1Ev
    fun:_ZN22DefaultSingletonTraitsIN6policy33ConfigurationPolicyProviderKeeperEE3NewEv
    fun:_ZN9SingletonIN6policy33ConfigurationPolicyProviderKeeperE22DefaultSingletonTraitsIS1_ES1_E3getEv
    fun:_ZN6policy28ConfigurationPolicyPrefStore36CreateManagedPlatformPolicyPrefStoreEv
    fun:_ZN14PrefValueStore18RefreshPolicyPrefsEP14CallbackRunnerI6Tuple1ISt6vectorISsSaISsEEEE
    fun:_Z16DispatchToMethodIN18TestingPrefService21TestingPrefValueStoreEM14PrefValueStoreFvP14CallbackRunnerI6Tuple1ISt6vectorISsSaISsEEEEESA_EvPT_T0_RKS4_IT1_E
    fun:_ZN14RunnableMethodIN18TestingPrefService21TestingPrefValueStoreEM14PrefValueStoreFvP14CallbackRunnerI6Tuple1ISt6vectorISsSaISsEEEEES4_ISA_EE3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop6DoWorkEv
    fun:_ZN4base18MessagePumpDefault3RunEPNS_11MessagePump8DelegateE
    fun:_ZN11MessageLoop11RunInternalEv
 }
 {
    bug_63670
    Memcheck:Cond
    fun:NSIntersectionRect
    fun:-[BrowserWindowController tabContentsViewFrameWillChange:frameRect:]
@@ skipping 165 matching lines @@
    bug_73299_b
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN24BrowserRenderProcessHost20CreateMessageFiltersEv
    fun:_ZN24BrowserRenderProcessHost4InitEbb
    fun:_ZN14RenderViewHost16CreateRenderViewERKSbItN4base20string16_char_traitsESaItEE
    fun:_ZN13ExtensionHost19CreateRenderViewNowEv
    fun:_ZN13ExtensionHost20ProcessCreationQueue14ProcessOneHostEv
    fun:_Z16DispatchToMethodIN13ExtensionHost20ProcessCreationQueueEMS1_FvvEEvPT_T0_RK6Tuple0
    fun:_ZN27ScopedRunnableMethodFactoryIN13ExtensionHost20ProcessCreationQueueEE14RunnableMethodIMS1_FvvE6Tuple0E3RunEv
-   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop6DoWorkEv
    fun:_ZN4base24MessagePumpCFRunLoopBase7RunWorkEv
    fun:_ZN4base24MessagePumpCFRunLoopBase13RunWorkSourceEPv
    fun:CFRunLoopRunSpecific
    fun:CFRunLoopRunInMode
    fun:RunCurrentEventLoopInMode
    fun:ReceiveNextEventCommon
    fun:BlockUntilNextEventMatchingListInMode
    fun:_DPSNextEvent
@@ skipping 216 matching lines @@
    fun:+[NSNavFBENode copyStandardSidebarNodes]
    fun:-[NSNavSidebarController load]
    fun:-[NSNavView loadSidebar]
    fun:-[NSSavePanel _initSidebarAndPopups]
    fun:-[NSSavePanel _initPanelCommon]
    fun:-[NSSavePanel initWithContentRect:styleMask:backing:defer:]
    fun:+[NSSavePanel _crunchyRawUnbonedPanel]
    fun:_ZN20SelectFileDialogImpl10SelectFileEN16SelectFileDialog4TypeERKSbItN4base20string16_char_traitsESaItEERK8FilePathPKNS0_12FileTypeInfoEiRKSsP8NSWindowPv
    fun:_ZN15DownloadManager24OnPathExistenceAvailableEP18DownloadCreateInfo
 }