[Memory] re-suppress old leak

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 # running overnight and removing outdated bugs/suppressions.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 6562 matching lines @@
    Memcheck:Leak
    fun:malloc
    fun:_ZN3WTF10fastMallocEm
    fun:_ZN3WTF9BitVector13OutOfLineBits6createEm
    fun:_ZN3WTF9BitVector15resizeOutOfLineEm
    fun:_ZN3WTF9BitVector10ensureSizeEm
    fun:_ZN3WTF9BitVectorC1Em
    fun:_ZN7WebCore10UseCounter17recordMeasurementENS0_7FeatureE
 }
 {
+   bug_241044   
+   Memcheck:Uninitialized       
+   fun:_ZN7WebCore8Settings29setOpenGLMultisamplingEnabledEb
+   fun:_ZN6WebKit15WebSettingsImpl29setOpenGLMultisamplingEnabledEb
+   fun:_ZN7content19ApplyWebPreferencesERK14WebPreferencesPN6WebKit7WebViewE
+   fun:_ZN7content14RenderViewImpl22OnUpdateWebPreferencesERK14WebPreferences
+   fun:_ZN7content14RenderViewImpl20SetWebkitPreferencesERK14WebPreferences
+}
+{
    bug_241892a
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7WebCore11CSSSelector8RareData6createEN3WTF10PassRefPtrINS2_16AtomicStringImplEEE
    fun:_ZN7WebCore11CSSSelector14createRareDataEv
    ...
    fun:_Z10cssyyparsePN7WebCore9CSSParserE
    fun:_ZN7WebCore9CSSParser10parseSheetEPNS_18StyleSheetContentsE*
    fun:_ZN7WebCore18StyleSheetContents17parseStringAtLineERKN3WTF6StringEib
    fun:_ZN7WebCore12StyleElement11createSheetE*
@@ skipping 650 matching lines @@
    bug_282646
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN16sync_file_system21SyncFileSystemBackendC1EP7Profile
    fun:_ZN6chrome26ChromeContentBrowserClient31GetAdditionalFileSystemBackendsEPN7content14BrowserContextERKN4base8FilePathEP12ScopedVectorIN7fileapi17FileSystemBackendEE
    fun:_ZN7content23CreateFileSystemContextEPNS_14BrowserContextERKN4base8FilePathEbPN5quota17QuotaManagerProxyE
    fun:_ZN7content20StoragePartitionImpl6CreateEPNS_14BrowserContextEbRKN4base8FilePathE
    fun:_ZN7content23StoragePartitionImplMap3GetERKSsS2_b
    fun:_ZN7content12_GLOBAL__N_129GetStoragePartitionFromConfigEPNS_14BrowserContextERKSsS4_b
 }