Add suppression for new memory leak that appeared during the WebKit deps roll...

tools/valgrind/memcheck/suppressions.txt

 # There are three 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 # running overnight and removing outdated bugs/suppressions.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 1031 matching lines @@
    fun:_ZN12_GLOBAL__N_115KillProcessTask3RunEv
    fun:_ZN11MessageLoop7RunTaskEP4Task
    fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
    fun:_ZN11MessageLoop13DoDelayedWorkEPN4base4TimeE
    fun:_ZN4base18MessagePumpDefault3RunEPNS_11MessagePump8DelegateE
    fun:_ZN11MessageLoop11RunInternalEv
    fun:_ZN11MessageLoop10RunHandlerEv
    fun:_ZN11MessageLoop3RunEv
    fun:_Z10WorkerMainRK18MainFunctionParams
 }
+{
+   bug_23197
+   Memcheck:Leak
+   fun:malloc
+   fun:_ZN3WTF10fastMallocEj
+   fun:_ZN7WebCore10StringImpl19createUninitializedEjRPt
+   fun:_ZN7WebCore10StringImpl6createEPKtj
+   fun:_ZN6WebKit9WebString6assignEPKtj
+   fun:_ZN6WebKit9WebStringC1ERKSbItN4base20string16_char_traitsESaItEE
+   fun:_ZNK14WebPreferences5ApplyEP7WebView
+   fun:_ZN10RenderView4InitEiPN4base13WaitableEventEiRK19RendererPreferencesPNS0_14RefCountedDataIiEEi
+   fun:_ZN10RenderView6CreateEP16RenderThreadBaseiPN4base13WaitableEventEiRK19RendererPreferencesRK14WebPreferencesPNS2_14RefCountedDataIiEEi
+   fun:_ZN12RenderThread15OnCreateNewViewEi16ModalDialogEventRK19RendererPreferencesRK14WebPreferencesi
+   fun:_Z16DispatchToMethodI12RenderThreadMS0_Fvi16ModalDialogEventRK19RendererPreferencesRK14WebPreferencesiEiS1_S2_S5_iEvPT_T0_RK6Tuple5IT1_T2_T3_T4_T5_E
+   fun:_ZN3IPC16MessageWithTupleI6Tuple5Ii16ModalDialogEvent19RendererPreferences14WebPreferencesiEE8DispatchI12RenderThreadMS8_FviS2_RKS3_RKS4_iEEEbPKNS_7MessageEPT_T0_
+   fun:_ZN12RenderThread24OnControlMessageReceivedERKN3IPC7MessageE
+   fun:_ZN11ChildThread17OnMessageReceivedERKN3IPC7MessageE
+   fun:_ZN3IPC12ChannelProxy7Context17OnDispatchMessageERKNS_7MessageE
+   fun:_Z16DispatchToMethodIN3IPC12ChannelProxy7ContextEMS2_FvRKNS0_7MessageEES3_EvPT_T0_RK6Tuple1IT1_E
+   fun:_ZN14RunnableMethodIN3IPC12ChannelProxy7ContextEMS2_FvRKNS0_7MessageEE6Tuple1IS3_EE3RunEv
+   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
+   fun:_ZN11MessageLoop6DoWorkEv
+   fun:_ZN4base18MessagePumpDefault3RunEPNS_11MessagePump8DelegateE
+   fun:_ZN11MessageLoop11RunInternalEv
+   fun:_ZN11MessageLoop10RunHandlerEv
+   fun:_ZN11MessageLoop3RunEv
+   fun:_Z12RendererMainRK18MainFunctionParams
+   fun:ChromeMain
+   fun:main
+}