Add [WillBeGarbageCollected] to Event.idl

Source/modules/mediastream/RTCIceCandidateEvent.cpp

Index: Source/modules/mediastream/RTCIceCandidateEvent.cpp
diff --git a/Source/modules/mediastream/RTCIceCandidateEvent.cpp b/Source/modules/mediastream/RTCIceCandidateEvent.cpp
index b1314bd8b3ba67d1425db84918a95b56136ccae1..34fc69463f6ddb28a63c6c6b798bfe1a7b3bb8d0 100644
--- a/Source/modules/mediastream/RTCIceCandidateEvent.cpp
+++ b/Source/modules/mediastream/RTCIceCandidateEvent.cpp
@@ -30,14 +30,14 @@
 
 namespace WebCore {
 
-PassRefPtr<RTCIceCandidateEvent> RTCIceCandidateEvent::create()
+PassRefPtrWillBeRawPtr<RTCIceCandidateEvent> RTCIceCandidateEvent::create()
 {
-    return adoptRef(new RTCIceCandidateEvent);
+    return adoptRefWillBeRefCountedGarbageCollected(new RTCIceCandidateEvent);
 }
 
-PassRefPtr<RTCIceCandidateEvent> RTCIceCandidateEvent::create(bool canBubble, bool cancelable, PassRefPtr<RTCIceCandidate> candidate)
+PassRefPtrWillBeRawPtr<RTCIceCandidateEvent> RTCIceCandidateEvent::create(bool canBubble, bool cancelable, PassRefPtr<RTCIceCandidate> candidate)
 {
-    return adoptRef(new RTCIceCandidateEvent(canBubble, cancelable, candidate));
+    return adoptRefWillBeRefCountedGarbageCollected(new RTCIceCandidateEvent(canBubble, cancelable, candidate));
 }
 
 RTCIceCandidateEvent::RTCIceCandidateEvent()