Suppress valgrind leak from WebCore::CSSParser::createFloatingValueList.

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
diff --git a/tools/valgrind/memcheck/suppressions.txt b/tools/valgrind/memcheck/suppressions.txt
index 016378173df243c22559b79fdebcd06f5c256965..745d8098fb3c5af0673f36d6dbd05609fd36265b 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -1032,3 +1032,21 @@
    fun:start_thread
    fun:clone
 }
+{
+   bug_23104
+   Memcheck:Leak
+   fun:_Znwj
+   fun:_ZN7WebCore9CSSParser23createFloatingValueListEv
+   fun:_Z10cssyyparsePv
+   fun:_ZN7WebCore9CSSParser10parseSheetEPNS_13CSSStyleSheetERKNS_6StringE
+   fun:_ZN7WebCore13CSSStyleSheet11parseStringERKNS_6StringEb
+   fun:_ZN7WebCore12parseUASheetERKNS_6StringE
+   fun:_ZN7WebCore12parseUASheetEPKcj
+   fun:_ZN7WebCore22loadSimpleDefaultStyleEv
+   fun:_ZN7WebCore16CSSStyleSelectorC1EPNS_8DocumentEPNS_14StyleSheetListEPNS_13CSSStyleSheetES6_PKN3WTF6VectorINS7_6RefPtrIS5_EELj0EEEbb
+   fun:_ZN7WebCore8Document6attachEv
+   fun:_ZN7WebCore5Frame11setDocumentEN3WTF10PassRefPtrINS_8DocumentEEE
+   fun:_ZN7WebCore11FrameLoader5beginERKNS_4KURLEbPNS_14SecurityOriginE
+   fun:_ZN7WebCore11FrameLoader4initEv
+   fun:_ZN7WebCore5Frame4initEv
+}