Reland "Don't report promise rejection events during the microtask checkpoint"

third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h

Index: third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h b/third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h
index c194d3dd489056af3a0cd60a55dcb47c0fdf0652..76c67b740f16e6faf8c5ddb6f229de693fd60d00 100644
--- a/third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h
+++ b/third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h
@@ -16,13 +16,13 @@ namespace blink {
 class ScriptCallStack;
 class ScriptState;
 
-class RejectedPromises final : public NoBaseWillBeGarbageCollected<RejectedPromises> {
+class RejectedPromises final : public RefCountedWillBeGarbageCollected<RejectedPromises> {
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(RejectedPromises);
     DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(RejectedPromises);
 public:
-    static PassOwnPtrWillBeRawPtr<RejectedPromises> create()
+    static PassRefPtrWillBeRawPtr<RejectedPromises> create()
     {
-        return adoptPtrWillBeNoop(new RejectedPromises);
+        return adoptRefWillBeNoop(new RejectedPromises);
     }
 
     RejectedPromises();
@@ -37,7 +37,14 @@ public:
 private:
     class Message;
 
-    WillBeHeapDeque<OwnPtrWillBeMember<Message>> m_queue;
+    using MessageQueue = WillBeHeapDeque<OwnPtrWillBeMember<Message>>;
+
+    PassOwnPtrWillBeRawPtr<MessageQueue> createMessageQueue();
+
+    void processQueueNow(PassOwnPtrWillBeRawPtr<MessageQueue>);
+    void revokeNow(PassOwnPtrWillBeRawPtr<Message>);
+
+    MessageQueue m_queue;
     WillBeHeapVector<OwnPtrWillBeMember<Message>> m_reportedAsErrors;
 };