[v8 gc] Introduce a base class for all objects that can have pending activity

third_party/WebKit/Source/core/fileapi/FileReader.h

Index: third_party/WebKit/Source/core/fileapi/FileReader.h
diff --git a/third_party/WebKit/Source/core/fileapi/FileReader.h b/third_party/WebKit/Source/core/fileapi/FileReader.h
index e871ecb6571667dde2855584c9f05f38a9e25f87..351f7feea782977ce337dd9ad0730399c4ff07f8 100644
--- a/third_party/WebKit/Source/core/fileapi/FileReader.h
+++ b/third_party/WebKit/Source/core/fileapi/FileReader.h
@@ -31,6 +31,7 @@
 #ifndef FileReader_h
 #define FileReader_h
 
+#include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "core/CoreExport.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/events/EventTarget.h"
@@ -49,7 +50,7 @@ class ExceptionState;
 class ExecutionContext;
 class StringOrArrayBuffer;
 
-class CORE_EXPORT FileReader final : public RefCountedGarbageCollectedEventTargetWithInlineData<FileReader>, public ActiveDOMObject, public FileReaderLoaderClient {
+class CORE_EXPORT FileReader final : public RefCountedGarbageCollectedEventTargetWithInlineData<FileReader>, public ActiveScriptWrappable, public ActiveDOMObject, public FileReaderLoaderClient {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(FileReader);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(FileReader);
@@ -79,7 +80,9 @@ public:
 
     // ActiveDOMObject
     void stop() override;
-    bool hasPendingActivity() const override;
+
+    // ActiveScriptWrappable
+    bool hasPendingActivity() const final;
 
     // EventTarget
     const AtomicString& interfaceName() const override;