Do not use setNativeState in RuntimeScheduler::Task

Summary:
changelog: [internal]

`setNativeState` is not implemented in JSC. Let's stick to host objects for now.

Reviewed By: cipolleschi

Differential Revision: D46193786

fbshipit-source-id: 9d36801bb9faa5c144a461bcbe623762bf6947b1

Author: sammy-SC

packages/react-native/Libraries/AppDelegate/RCTAppDelegate.h

@@ -94,6 +94,11 @@
  */
 - (UIViewController *)createRootViewController;
 
+/// This method controls whether the App will use RuntimeScheduler. Only applicable in the legacy architecture.
+///
+/// @return: `YES` to use RuntimeScheduler, `NO` to use JavaScript scheduler. The default value is `YES`.
+- (BOOL)runtimeSchedulerEnabled;
+
 #if RCT_NEW_ARCH_ENABLED
 
 /// The TurboModule manager

packages/react-native/Libraries/AppDelegate/RCTAppDelegate.mm

@@ -134,18 +134,26 @@ - (UIViewController *)createRootViewController
   return [UIViewController new];
 }
 
+- (BOOL)runtimeSchedulerEnabled
+{
+  return YES;
+}
+
 #pragma mark - RCTCxxBridgeDelegate
 - (std::unique_ptr<facebook::react::JSExecutorFactory>)jsExecutorFactoryForBridge:(RCTBridge *)bridge
 {
-  _runtimeScheduler = std::make_shared<facebook::react::RuntimeScheduler>(RCTRuntimeExecutorFromBridge(bridge));
 #if RCT_NEW_ARCH_ENABLED
+  _runtimeScheduler = std::make_shared<facebook::react::RuntimeScheduler>(RCTRuntimeExecutorFromBridge(bridge));
   std::shared_ptr<facebook::react::CallInvoker> callInvoker =
       std::make_shared<facebook::react::RuntimeSchedulerCallInvoker>(_runtimeScheduler);
   self.turboModuleManager = [[RCTTurboModuleManager alloc] initWithBridge:bridge delegate:self jsInvoker:callInvoker];
   _contextContainer->erase("RuntimeScheduler");
   _contextContainer->insert("RuntimeScheduler", _runtimeScheduler);
   return RCTAppSetupDefaultJsExecutorFactory(bridge, self.turboModuleManager, _runtimeScheduler);
 #else
+  if (self.runtimeSchedulerEnabled) {
+    _runtimeScheduler = std::make_shared<facebook::react::RuntimeScheduler>(RCTRuntimeExecutorFromBridge(bridge));
+  }
   return RCTAppSetupJsExecutorFactoryForOldArch(bridge, _runtimeScheduler);
 #endif
 }

packages/react-native/ReactCommon/react/renderer/runtimescheduler/primitives.h

@@ -19,11 +19,17 @@ struct TaskWrapper : public jsi::HostObject {
   std::shared_ptr<Task> task;
 };
 
+struct TaskWrapper : public jsi::HostObject {
+  TaskWrapper(std::shared_ptr<Task> const &task) : task(task) {}
+
+  std::shared_ptr<Task> task;
+};
+
 inline static jsi::Value valueFromTask(
     jsi::Runtime &runtime,
     std::shared_ptr<Task> task) {
   return jsi::Object::createFromHostObject(
-          runtime, std::make_shared<TaskWrapper>(task));
+      runtime, std::make_shared<TaskWrapper>(task));
 }
 
 inline static std::shared_ptr<Task> taskFromValue(