ActiveScriptWrappable: GC wrappers in detached ExecutionContexts.

third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h

Index: third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h b/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h
index 406e8ee89a3253e0640756ffd9e58a0ff6bcf808..b81306172bf99548b06967fc2a9d745801ad385b 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h
@@ -43,7 +43,7 @@
 
 namespace blink {
 
-class ActiveScriptWrappable;
+class ActiveScriptWrappableBase;
 class DOMDataStore;
 class StringCache;
 class ThreadDebugger;
@@ -160,8 +160,8 @@ class CORE_EXPORT V8PerIsolateData {
   ThreadDebugger* threadDebugger();
 
   using ActiveScriptWrappableSet =
-      HeapHashSet<WeakMember<ActiveScriptWrappable>>;
-  void addActiveScriptWrappable(ActiveScriptWrappable*);
+      HeapHashSet<WeakMember<ActiveScriptWrappableBase>>;
+  void addActiveScriptWrappable(ActiveScriptWrappableBase*);
   const ActiveScriptWrappableSet* activeScriptWrappables() const {
     return m_activeScriptWrappables.get();
   }