Suppress leak in WebCore::StyleResolver

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 # running overnight and removing outdated bugs/suppressions.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 6437 matching lines @@
    Memcheck:Leak
    ...
    fun:_ZN6policy12URLBlacklist10AddFiltersEbPKN4base9ListValueE
    fun:_ZN6policy12URLBlacklist5BlockEPKN4base9ListValueE
    fun:_ZN20ManagedModeURLFilter14SetManualListsE10scoped_ptrIN4base9ListValueENS1_14DefaultDeleterIS2_EEES5_
    fun:_ZN20ManagedModeURLFilterC1Ev
    fun:_ZN11ManagedMode16URLFilterContextC1E13scoped_refptrIN4base19SequencedTaskRunnerEE
    fun:_ZN11ManagedModeC2Ev
 }
 {
-   bug_
+   bug_169311
    Memcheck:Leak
    fun:malloc
    fun:_ZN3WTF10fastMallocEm
    fun:_ZN3WTF10RefCountedIN7WebCore18StyleSheetContentsEEnwEm
    fun:_ZN7WebCore18StyleSheetContents6createERKNS_16CSSParserContextE
    fun:_ZN7WebCoreL12parseUASheetERKN3WTF6StringE
    fun:_ZN7WebCoreL12parseUASheetEPKcj
    fun:_ZN7WebCoreL15viewSourceStyleEv
    fun:_ZN7WebCore13StyleResolver12matchUARulesERNS0_11MatchResultE
    fun:_ZN7WebCore13StyleResolver15styleForElementEPNS_7ElementEPNS_11RenderStyleENS_20StyleSharingBehaviorENS_20RuleMatchingBehaviorEPNS_12RenderRegionE
    fun:_ZN7WebCore13StyleResolverC1EPNS_8DocumentEb
    fun:_ZN7WebCore8Document19createStyleResolverEv
    fun:_ZN7WebCore8Document13styleResolverEv
    fun:_ZN7WebCore7Element16styleForRendererEv
-   fun:_ZN7WebCore20NodeRenderingContext32createRendererForElementIfNeededEv
-   fun:_ZN7WebCore7Element22createRendererIfNeededEv
-   fun:_ZN7WebCore7Element6attachEv
-   fun:_ZN7WebCore22HTMLViewSourceDocument21createContainingTableEv
-   fun:_ZN7WebCore22HTMLViewSourceDocument9addSourceERKN3WTF6StringERNS_9HTMLTokenE
-   fun:_ZN7WebCore20HTMLViewSourceParser13pumpTokenizerEv
-   fun:_ZN7WebCore20HTMLViewSourceParser6appendERKNS_15SegmentedStringE
-   fun:_ZN7WebCore25DecodedDataDocumentParser5flushEPNS_14DocumentWriterE
-   fun:_ZN7WebCore14DocumentWriter3endEv
 }