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

third_party/WebKit/Source/modules/webmidi/MIDIAccess.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MIDIAccess_h
 #define MIDIAccess_h
 
+#include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "modules/EventTargetModules.h"
 #include "modules/webmidi/MIDIAccessInitializer.h"
 #include "modules/webmidi/MIDIAccessor.h"
 #include "modules/webmidi/MIDIAccessorClient.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class ExecutionContext;
 class MIDIInput;
 class MIDIInputMap;
 class MIDIOutput;
 class MIDIOutputMap;
 
-class MIDIAccess final : public RefCountedGarbageCollectedEventTargetWithInlineData<MIDIAccess>, public ActiveDOMObject, public MIDIAccessorClient {
+class MIDIAccess final : public RefCountedGarbageCollectedEventTargetWithInlineData<MIDIAccess>, public ActiveScriptWrappable, public ActiveDOMObject, public MIDIAccessorClient {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(MIDIAccess);
     DEFINE_WRAPPERTYPEINFO();
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MIDIAccess);
 public:
     static MIDIAccess* create(PassOwnPtr<MIDIAccessor> accessor, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>& ports, ExecutionContext* executionContext)
     {
         MIDIAccess* access = new MIDIAccess(accessor, sysexEnabled, ports, executionContext);
         access->suspendIfNeeded();
         return access;
     }
     ~MIDIAccess() override;
 
     MIDIInputMap* inputs() const;
     MIDIOutputMap* outputs() const;
 
     EventListener* onstatechange();
     void setOnstatechange(PassRefPtrWillBeRawPtr<EventListener>);
 
     bool sysexEnabled() const { return m_sysexEnabled; }
 
     // EventTarget
     const AtomicString& interfaceName() const override { return EventTargetNames::MIDIAccess; }
     ExecutionContext* getExecutionContext() const override { return ActiveDOMObject::getExecutionContext(); }
 
+    // ActiveScriptWrappable
+    bool hasPendingActivity() const final;
+
     // ActiveDOMObject
-    bool hasPendingActivity() const override;
     void stop() override;
 
     // MIDIAccessorClient
     void didAddInputPort(const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState) override;
     void didAddOutputPort(const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState) override;
     void didSetInputPortState(unsigned portIndex, MIDIAccessor::MIDIPortState) override;
     void didSetOutputPortState(unsigned portIndex, MIDIAccessor::MIDIPortState) override;
     void didStartSession(bool success, const String& error, const String& message) override
     {
         // This method is for MIDIAccess initialization: MIDIAccessInitializer
@@ skipping 17 matching lines @@
     OwnPtr<MIDIAccessor> m_accessor;
     bool m_sysexEnabled;
     bool m_hasPendingActivity;
     HeapVector<Member<MIDIInput>> m_inputs;
     HeapVector<Member<MIDIOutput>> m_outputs;
 };
 
 } // namespace blink
 
 #endif // MIDIAccess_h