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

third_party/WebKit/Source/modules/mediastream/RTCPeerConnection.h

 /*
  * Copyright (C) 2012 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ 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 RTCPeerConnection_h
 #define RTCPeerConnection_h
 
+#include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "modules/EventTargetModules.h"
 #include "modules/crypto/NormalizeAlgorithm.h"
 #include "modules/mediastream/MediaStream.h"
 #include "modules/mediastream/RTCIceCandidate.h"
 #include "platform/AsyncMethodRunner.h"
 #include "public/platform/WebMediaConstraints.h"
 #include "public/platform/WebRTCPeerConnectionHandler.h"
@@ skipping 12 matching lines @@
 class RTCSessionDescription;
 class RTCSessionDescriptionCallback;
 class RTCSessionDescriptionInit;
 class RTCStatsCallback;
 class ScriptState;
 class VoidCallback;
 
 class RTCPeerConnection final
     : public RefCountedGarbageCollectedEventTargetWithInlineData<RTCPeerConnection>
     , public WebRTCPeerConnectionHandlerClient
+    , public ActiveScriptWrappable
     , public ActiveDOMObject {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(RTCPeerConnection);
     DEFINE_WRAPPERTYPEINFO();
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(RTCPeerConnection);
 public:
     // TODO(hbos): Create with expired RTCCertificate should fail, see crbug.com/565278.
     static RTCPeerConnection* create(ExecutionContext*, const Dictionary&, const Dictionary&, ExceptionState&);
     ~RTCPeerConnection() override;
 
     ScriptPromise createOffer(ScriptState*, const RTCOfferOptions&);
@@ skipping 68 matching lines @@
     void closePeerConnection() override;
 
     // EventTarget
     const AtomicString& interfaceName() const override;
     ExecutionContext* getExecutionContext() const override;
 
     // ActiveDOMObject
     void suspend() override;
     void resume() override;
     void stop() override;
+
+    // ActiveScriptWrappable
     // We keep the this object alive until either stopped or closed.
-    bool hasPendingActivity() const override
+    bool hasPendingActivity() const final
     {
         return !m_closed && !m_stopped;
     }
 
     // Oilpan: need to eagerly finalize m_peerHandler
     EAGERLY_FINALIZE();
     DECLARE_VIRTUAL_TRACE();
 
 private:
     typedef Function<bool()> BoolFunction;
@@ skipping 41 matching lines @@
     Member<AsyncMethodRunner<RTCPeerConnection>> m_dispatchScheduledEventRunner;
     HeapVector<Member<EventWrapper>> m_scheduledEvents;
 
     bool m_stopped;
     bool m_closed;
 };
 
 } // namespace blink
 
 #endif // RTCPeerConnection_h