Valgrind: Add and widen suppressions.

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 # running overnight and removing outdated bugs/suppressions.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 5210 matching lines @@
    fun:_ZN7WebCore14ArchiveFactory6createERKNS_4KURLEPNS_12SharedBufferERKN3WTF6StringE
    ...
    fun:_ZN7WebCore14DocumentLoader15finishedLoadingEv
    fun:_ZN7WebCore18MainResourceLoader16didFinishLoadingEd
 }
 {
    bug_122670
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN3WTF11ListHashSetIPN7WebCore12RenderInlineELm256ENS_7PtrHashIS3_EEEC1Ev
-   fun:_ZNK7WebCore17RenderLineBoxList5paintEPNS_20RenderBoxModelObjectERNS_9PaintInfoERKNS_8IntPointE
-   fun:_ZN7WebCore11RenderBlock13paintContentsERNS_9PaintInfoERKNS_8IntPointE
-   fun:_ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoERKNS_8IntPointE
-   fun:_ZN7WebCore11RenderBlock5paintERNS_9PaintInfoERKNS_8IntPointE
+   fun:_ZNK7WebCore17RenderLineBoxList5paintEPNS_20RenderBoxModelObjectERNS_9PaintInfoERKNS*
+   fun:_ZN7WebCore11RenderBlock13paintContentsERNS_9PaintInfoERKNS*
+   fun:_ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoERKNS*
+   fun:_ZN7WebCore11RenderBlock5paintERNS_9PaintInfoERKNS*
 }
 {
    bug_122716
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN9__gnu_cxx13new_allocatorISsE8allocate*
    fun:_ZNSt12_Vector_baseISsSaISsEE11_M_allocate*
    fun:_ZNSt6vectorISsSaISsEE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPSsS1_EERKSs
    fun:_ZNSt6vectorISsSaISsEE9push_backERKSs
    fun:_ZN4baseL12SplitStringTISsEEvRKT_NS1_10value_typeEbPSt6vectorIS1_SaIS1_EE
@@ skipping 473 matching lines @@
    fun:_ZNK7WebCore18AccessibilityTable9roleValueEv
    fun:_ZNK7WebCore25AccessibilityRenderObject20ariaLiveRegionStatusEv
    fun:_ZNK7WebCore19AccessibilityObject22supportsARIALiveRegionEv
    fun:_ZNK7WebCore19AccessibilityObject22supportsARIAAttributesEv
    fun:_ZN7WebCore25AccessibilityRenderObject26determineAccessibilityRoleEv
    fun:_ZN7WebCore23AccessibilityNodeObject4initEv
    fun:_ZN7WebCore25AccessibilityRenderObject4initEv
    fun:_ZN7WebCore18AccessibilityTable4initEv
    fun:_ZN7WebCore18AccessibilityTable6createEPNS_12RenderObjectE
 }
+{
+   bug_139470
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN7WebCore22ThreadableBlobRegistry17unregisterBlobURLERKNS_4KURLE
+   ...
+   fun:_ZN7WebCore15WrapperTypeInfo11derefObjectEPv
+   fun:_ZN7WebCore7DOMData11derefObjectEPNS_15WrapperTypeInfoEPv
+   fun:_ZN7WebCore7DOMData23WrapperMapObjectRemoverIvE15visitDOMWrapperEPNS_12DOMDataStoreEPvN2v810PersistentINS6_6ObjectEEE
+   fun:_ZN7WebCore16WeakReferenceMapIvN2v86ObjectEE5visitEPNS_12DOMDataStoreEPNS_24AbstractWeakReferenceMapIvS2_E7VisitorE
+   fun:_ZN7WebCore7DOMData27removeObjectsFromWrapperMapIvEEvPNS_12DOMDataStoreERNS_24AbstractWeakReferenceMapIT_N2v86ObjectEEE
+   fun:_ZN7WebCore19removeAllDOMObjectsEv
+   fun:_ZN7WebCore22WorkerScriptControllerD1Ev
+   fun:_ZN3WTF14deleteOwnedPtrIN7WebCore22WorkerScriptControllerEEEvPT_
+   fun:_ZN3WTF6OwnPtrIN7WebCore22WorkerScriptControllerEE5clearEv
+   fun:_ZN7WebCore13WorkerContext11clearScriptEv
+   fun:_ZN7WebCore30WorkerThreadShutdownFinishTask11performTaskEPNS_22ScriptExecutionContextE
+   fun:_ZN7WebCore13WorkerRunLoop4Task11performTaskERKS0_PNS_22ScriptExecutionContextE
+   fun:_ZN7WebCore13WorkerRunLoop9runInModeEPNS_13WorkerContextERKNS_13ModePredicateENS0_8WaitModeE
+   fun:_ZN7WebCore13WorkerRunLoop3runEPNS_13WorkerContextE
+   fun:_ZN7WebCore12WorkerThread12runEventLoopEv
+   fun:_ZN7WebCore21DedicatedWorkerThread12runEventLoopEv
+}
 
 #-----------------------------------------------------------------------
 # 4. These only occur on our Google workstations
 
 {
    bug_todo_getdelim
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    ...
    fun:call_init
    fun:_dl_init
 }
 {
    bug_todo_getdelim2
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }