[MemSheriff] Valgrind whack-a-mole - widen suppression.

Widens an existing suppression to account for more script state leaks.

BUG=364821
NOTRY=true
R=thestig@chromium.org
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/302093007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273931 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -6298,8 +6298,7 @@
    fun:_ZN3WTF10RefCountedIN7WebCore11ScriptStateEEnwEm
    fun:_ZN7WebCore11ScriptState6createEN2v86HandleINS1_7ContextEEEN3WTF10PassRefPtrINS_15DOMWrapperWorldEEE
    fun:_ZN7WebCore22WorkerScriptController25initializeContextIfNeededEv
-   fun:_ZN7WebCore22WorkerScriptController8evaluateERKN3WTF6StringES4_RKNS1_12TextPositionEPNS_31WorkerGlobalScopeExecutionStateE
-   fun:_ZN7WebCore22WorkerScriptController8evaluateERKNS_16ScriptSourceCodeEPN3WTF6RefPtrINS_10ErrorEventEEE
+   ...
    fun:_ZN7WebCore12WorkerThread12workerThreadEv
    fun:_ZN7WebCore12WorkerThread17workerThreadStartEPv
    fun:_ZN3WTFL16threadEntryPointEPv