Sync Navigator.getGamepads() with the spec

Source/modules/gamepad/NavigatorGamepad.h

Index: Source/modules/gamepad/NavigatorGamepad.h
diff --git a/Source/modules/gamepad/NavigatorGamepad.h b/Source/modules/gamepad/NavigatorGamepad.h
index 521424a409f91f03b3518a80cd58aacd2a2834c2..edb8efa8fe679a17ceffc918fc38fb0f8dd930eb 100644
--- a/Source/modules/gamepad/NavigatorGamepad.h
+++ b/Source/modules/gamepad/NavigatorGamepad.h
@@ -38,7 +38,6 @@ namespace blink {
 
 class Document;
 class Gamepad;
-class GamepadList;
 class Navigator;
 
 class NavigatorGamepad final : public NoBaseWillBeGarbageCollectedFinalized<NavigatorGamepad>, public WillBeHeapSupplement<Navigator>, public DOMWindowProperty, public PlatformEventController, public DOMWindowLifecycleObserver {
@@ -48,8 +47,8 @@ public:
     static NavigatorGamepad& from(Navigator&);
     virtual ~NavigatorGamepad();
 
-    static GamepadList* getGamepads(Navigator&);
-    GamepadList* gamepads();
+    static HeapVector<Member<Gamepad>> getGamepads(Navigator&);
+    HeapVector<Member<Gamepad>> getGamepads();
 
     virtual void trace(Visitor*);
 
@@ -80,7 +79,7 @@ private:
     virtual void didRemoveEventListener(LocalDOMWindow*, const AtomicString&) override;
     virtual void didRemoveAllEventListeners(LocalDOMWindow*) override;
 
-    PersistentWillBeMember<GamepadList> m_gamepads;
+    //PersistentWillBeMember<GamepadList> m_gamepads;
     PersistentHeapDequeWillBeHeapDeque<Member<Gamepad>> m_pendingEvents;
     AsyncMethodRunner<NavigatorGamepad> m_dispatchOneEventRunner;
 };