Clear PermissionStatus::m_service in pre-finalizer

third_party/WebKit/Source/modules/permissions/PermissionStatus.h

Index: third_party/WebKit/Source/modules/permissions/PermissionStatus.h
diff --git a/third_party/WebKit/Source/modules/permissions/PermissionStatus.h b/third_party/WebKit/Source/modules/permissions/PermissionStatus.h
index e67c5bc5c29044bfddb66f0eb985a8a1e6430665..ed3e5d7207750c649ba57097e6358ab8a9e6218e 100644
--- a/third_party/WebKit/Source/modules/permissions/PermissionStatus.h
+++ b/third_party/WebKit/Source/modules/permissions/PermissionStatus.h
@@ -24,6 +24,7 @@ class PermissionStatus final : public EventTargetWithInlineData,
                                public ActiveScriptWrappable,
                                public ActiveDOMObject {
   USING_GARBAGE_COLLECTED_MIXIN(PermissionStatus);
+  USING_PRE_FINALIZER(PermissionStatus, dispose);
   DEFINE_WRAPPERTYPEINFO();
 
   using MojoPermissionDescriptor = mojom::blink::PermissionDescriptorPtr;
@@ -37,7 +38,7 @@ class PermissionStatus final : public EventTargetWithInlineData,
   static PermissionStatus* createAndListen(ExecutionContext*,
                                            MojoPermissionStatus,
                                            MojoPermissionDescriptor);
-  ~PermissionStatus() override;
+  void dispose();
 
   // EventTarget implementation.
   const AtomicString& interfaceName() const override;