Trace ScriptWrappableVisitor.m_markingDeque by oilpan gc

third_party/WebKit/Source/platform/heap/ThreadState.h

Index: third_party/WebKit/Source/platform/heap/ThreadState.h
diff --git a/third_party/WebKit/Source/platform/heap/ThreadState.h b/third_party/WebKit/Source/platform/heap/ThreadState.h
index 456d154a3a689c083b227afc911945329f6f0716..9f09f529740fc1e981141b845d53df827cc62cae 100644
--- a/third_party/WebKit/Source/platform/heap/ThreadState.h
+++ b/third_party/WebKit/Source/platform/heap/ThreadState.h
@@ -418,10 +418,13 @@ public:
 
     void shouldFlushHeapDoesNotContainCache() { m_shouldFlushHeapDoesNotContainCache = true; }
 
-    void registerTraceDOMWrappers(v8::Isolate* isolate, void (*traceDOMWrappers)(v8::Isolate*, Visitor*))
+    void registerTraceDOMWrappers(v8::Isolate* isolate,
+        void (*traceDOMWrappers)(v8::Isolate*, Visitor*),
+        void (*cleanTraceWrappersMarkingDeque)(v8::Isolate*))
     {
         m_isolate = isolate;
         m_traceDOMWrappers = traceDOMWrappers;
+        m_cleanTraceWrappersMarkingDeque = cleanTraceWrappersMarkingDeque;
     }
 
     // By entering a gc-forbidden scope, conservative GCs will not
@@ -524,6 +527,13 @@ public:
 
     v8::Isolate* isolate() const { return m_isolate; }
 
+    void cleanTraceWrappersMarkingDeque()
+    {
+        if (m_cleanTraceWrappersMarkingDeque) {
+            m_cleanTraceWrappersMarkingDeque(m_isolate);
+        }
+    }
+
 private:
     enum SnapshotType {
         HeapSnapshot,
@@ -656,6 +666,7 @@ private:
 
     v8::Isolate* m_isolate;
     void (*m_traceDOMWrappers)(v8::Isolate*, Visitor*);
+    void (*m_cleanTraceWrappersMarkingDeque)(v8::Isolate*);
 
 #if defined(ADDRESS_SANITIZER)
     void* m_asanFakeStack;