Suppresses the memory errors in LayoutPluginTester.FLAKY_SelfDeletePluginInvoke.

This change suppresses all the memory errors in LayoutPluginTester.FLAKY_SelfDeletePluginInvoke started since r71589 <http://crrev.com/71589>. I'm wondering if these suppressions are good ones, though.

TBR=thestig,timurrrr
BUG=69934
TEST=make the "Linux Tests (valgrind)(4)" bot green.
Review URL: http://codereview.chromium.org/6320006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71648 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -3590,3 +3590,35 @@
    fun:_ZN3gfx9GLContext24CreateOffscreenGLContextEPS0_
    fun:*InitializeGLContextEv
 }
+{
+   Bug_69934_a
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN13NPObjectProxy10NPAllocateEP4_NPPP7NPClass
+   fun:_NPN_CreateObject
+   fun:_ZN6WebKit11WebBindings12createObjectEP4_NPPP7NPClass
+   fun:_ZN13NPObjectProxy6CreateEP17PluginChannelBaseiiRK4GURL
+   fun:_ZN14WebPluginProxy23GetWindowScriptNPObjectEv
+   fun:NPN_GetValue
+   fun:_Z12testCallbackP12PluginObjectPK10_NPVariantjPS1_
+   fun:_Z12pluginInvokeP8NPObjectPvPK10_NPVariantjPS2_
+}
+{
+   Bug_69934_b
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN3IPC11SyncMessage13GenerateReplyEPKNS_7MessageE
+   fun:_ZN3IPC16MessageWithReplyI6Tuple1I21PluginMsg_Init_ParamsES1_IRbEE18DispatchDelayReplyIN13PluginChannel13MessageFilterEMS9_FvRKS2_PNS_7MessageEEEEbPKSC_PT_T0_
+   fun:_ZN13PluginChannel13MessageFilter17OnMessageReceivedERKN3IPC7MessageE
+}
+{
+   Bug_69934_c
+   Memcheck:Addr4
+   fun:_ZN12NPObjectStub8OnInvokeEbRK18NPIdentifier_ParamRKSt6vectorI15NPVariant_ParamSaIS4_EEPN3IPC7MessageE
+   fun:_Z16DispatchToMethodI12NPObjectStubMS0_FvbRK18NPIdentifier_ParamRKSt6vectorI15NPVariant_ParamSaIS5_EEPN3IPC7MessageEEbS1_S7_RSB_EvPT_T0_RK6Tuple3IT1_T2_T3_EP6Tuple1IT4_E
+   fun:_ZN3IPC16MessageWithReplyI6Tuple3Ib18NPIdentifier_ParamSt6vectorI15NPVariant_ParamSaIS4_EEE6Tuple2IRS4_RbEE18DispatchDelayReplyI12NPObjectStubMSE_FvbRKS2_RKS6_PNS_7MessageEEEEbPKSJ_PT_T0_
+   fun:_ZN12NPObjectStub17OnMessageReceivedERKN3IPC7MessageE
+   fun:_ZN13MessageRouter12RouteMessageERKN3IPC7MessageE
+   fun:_ZN17PluginChannelBase17OnMessageReceivedERKN3IPC7MessageE
+   fun:_ZN13PluginChannel17OnMessageReceivedERKN3IPC7MessageE
+}