Valgrind: retire suppression for bug 291240.

tools/valgrind/memcheck/suppressions.txt

 # There are four 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 # running overnight and removing outdated bugs/suppressions.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 6199 matching lines @@
 {
    bug_290559b
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7content12_GLOBAL__N_123WaitableCallbackResultsC1Ev
    fun:_ZN7content12_GLOBAL__N_123WaitableCallbackResults11MaybeCreateEN6WebKit22WebFileSystemCallbacksE
    ...
    fun:_ZN7WebCore*SyncV8Internal*FunctionCallbackInfo*
 }
 {
-   bug_291240
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer11handleErrorENS1_6StatusEPNS1_9StateBaseE
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer27writeTransferredArrayBufferEN2v86HandleINS2_5ValueEEEjPNS1_9StateBaseE
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer11doSerializeEN2v86HandleINS2_5ValueEEEPNS1_9StateBaseE
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer27writeAndGreyArrayBufferViewEN2v86HandleINS2_6ObjectEEEPNS1_9StateBaseE
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer11doSerializeEN2v86HandleINS2_5ValueEEEPNS1_9StateBaseE
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer15DenseArrayState7advanceERS1_
-   fun:_ZN7WebCore12_GLOBAL__N_110Serializer9serializeEN2v86HandleINS2_5ValueEEE
-}
-{
    bug_293024_a
    Memcheck:Leak
    fun:malloc
    fun:_ZN3WTF10fastMallocEm
    fun:_ZN3WTF24ThreadSafeRefCountedBasenwEm
    fun:_ZN6WebKit30AllowIndexedDBMainThreadBridge6createEPN7WebCore17WorkerGlobalScopeEPNS_13WebWorkerBaseERKN3WTF6StringES9_
    fun:_ZN6WebKit22IDBFactoryBackendProxy14allowIndexedDBEPN7WebCore22ScriptExecutionContextERKN3WTF6StringERKNS_17WebSecurityOriginENS4_10PassRefPtrINS1_12IDBCallbacksEEE
    ...
    fun:_ZN2v88internal25FunctionCallbackArguments4CallEPFvRKNS_20FunctionCallbackInfoINS_5ValueEEEE
 }
@@ skipping 199 matching lines @@
    fun:_ZN7WebCore17RenderTextControl29computePreferredLogicalWidthsEv
    ...
    fun:_ZN7WebCore11RenderBlock6layoutEv
 }
 {
    bug_313521
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN8app_list32AppListModelTest_FolderItem_Test8TestBodyEv
 }