Replace ErrorCallbackTask in RTCPeerConnection.cpp with WTF::bind()

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

 /*
  * 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 82 matching lines @@
 bool throwExceptionIfSignalingStateClosed(RTCPeerConnection::SignalingState state, ExceptionState& exceptionState)
 {
     if (state == RTCPeerConnection::SignalingStateClosed) {
         exceptionState.throwDOMException(InvalidStateError, kSignalingStateClosedMessage);
         return true;
     }
 
     return false;
 }
 
-// Helper class for running error callbacks asynchronously
-class ErrorCallbackTask : public WebTaskRunner::Task {
-public:
-    static PassOwnPtr<ErrorCallbackTask> create(RTCPeerConnectionErrorCallback* errorCallback, DOMException* exception)
-    {
-        return adoptPtr(new ErrorCallbackTask(errorCallback, exception));
-    }
-
-    ~ErrorCallbackTask() override = default;
-
-    void run() override
-    {
-        m_errorCallback->handleEvent(m_exception);
-    }
-
-private:
-    ErrorCallbackTask(RTCPeerConnectionErrorCallback* errorCallback, DOMException* exception)
-        : m_errorCallback(errorCallback)
-        , m_exception(exception)
-    {
-        ASSERT(errorCallback);
-    }
-
-    Persistent<RTCPeerConnectionErrorCallback> m_errorCallback;
-    Persistent<DOMException> m_exception;
-};
-
 void asyncCallErrorCallback(RTCPeerConnectionErrorCallback* errorCallback, DOMException* exception)
 {
-    Microtask::enqueueMicrotask(ErrorCallbackTask::create(errorCallback, exception));
+    ASSERT(errorCallback);
+    Microtask::enqueueMicrotask(bind(&RTCPeerConnectionErrorCallback::handleEvent, errorCallback, exception));
 }
 
 bool callErrorCallbackIfSignalingStateClosed(RTCPeerConnection::SignalingState state, RTCPeerConnectionErrorCallback* errorCallback)
 {
     if (state == RTCPeerConnection::SignalingStateClosed) {
         if (errorCallback)
             asyncCallErrorCallback(errorCallback, DOMException::create(InvalidStateError, kSignalingStateClosedMessage));
 
         return true;
     }
@@ skipping 1016 matching lines @@
 {
     visitor->trace(m_localStreams);
     visitor->trace(m_remoteStreams);
     visitor->trace(m_dispatchScheduledEventRunner);
     visitor->trace(m_scheduledEvents);
     RefCountedGarbageCollectedEventTargetWithInlineData<RTCPeerConnection>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink