Suppress a leak in AutomationProxyTest.AcceleratorHistory (issue 123307)

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
===================================================================
--- tools/valgrind/memcheck/suppressions.txt	(revision 132164)
+++ tools/valgrind/memcheck/suppressions.txt	(working copy)
@@ -5765,6 +5765,24 @@
    fun:_ZN7WebCore13LayerChromium16removeFromParentEv
    fun:_ZN7WebCore21GraphicsLayerChromium16removeFromParentEv
 }
+{
+   bug_123307
+   Memcheck:Leak
+   fun:malloc
+   fun:_ZN3WTF10fastMallocEm
+   fun:_ZN3WTF16fastZeroedMallocEm
+   ...
+   fun:_ZN7WebCore12_GLOBAL__N_111V8ObjectMapIN2v86ObjectEjE3setERKNS2_6HandleIS3_EERKj
+   fun:_ZN7WebCore12_GLOBAL__N_110Serializer10greyObjectERKN2v86HandleINS2_6ObjectEEE
+   fun:_ZN7WebCore12_GLOBAL__N_110Serializer11doSerializeEN2v86HandleINS2_5ValueEEEPNS1_9StateBaseE
+   fun:_ZN7WebCore12_GLOBAL__N_110Serializer9serializeEN2v86HandleINS2_5ValueEEE
+   fun:_ZN7WebCore21SerializedScriptValueC1EN2v86HandleINS1_5ValueEEEPN3WTF6VectorINS5_6RefPtrINS_11MessagePortEEELm1EEEPNS6_INS7_INS5_11ArrayBufferEEELm1EEERb
+   fun:_ZN7WebCore21SerializedScriptValue6createEN2v86HandleINS1_5ValueEEEPN3WTF6VectorINS5_6RefPtrINS_11MessagePortEEELm1EEEPNS6_INS7_INS5_11ArrayBufferEEELm1EEERb
+   fun:_ZN7WebCoreL25handlePostMessageCallbackERKN2v89ArgumentsEb
+   fun:_ZN7WebCore11V8DOMWindow19postMessageCallbackERKN2v89ArgumentsE
+   fun:_ZN2v88internalL19HandleApiCallHelperILb0EEEPNS0_11MaybeObjectENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
+   fun:_ZN2v88internalL21Builtin_HandleApiCallENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
+}
 
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