Revert of Release Oilpan heap singletons prior to LSan leak detection.

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 9dc62c4e9198b877e6294654c0e85e98c77eca0e..a839fc9eaf2f658de4639870b0978dccdf46a1b2 100644
--- a/third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h
+++ b/third_party/WebKit/Source/bindings/core/v8/RejectedPromises.h
@@ -26,6 +26,7 @@
         return adoptRefWillBeNoop(new RejectedPromises);
     }
 
+    RejectedPromises();
     void dispose();
     DECLARE_TRACE();
 
@@ -37,9 +38,8 @@
 private:
     class Message;
 
-    RejectedPromises();
+    using MessageQueue = WillBeHeapDeque<OwnPtrWillBeMember<Message>>;
 
-    using MessageQueue = WillBeHeapDeque<OwnPtrWillBeMember<Message>>;
     PassOwnPtrWillBeRawPtr<MessageQueue> createMessageQueue();
 
     void processQueueNow(PassOwnPtrWillBeRawPtr<MessageQueue>);