Worklet: Enqueue tasks into outsideSetting's event loop

third_party/WebKit/Source/core/workers/WorkletModuleTreeClient.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/dom/Modulator.h"
+#include "core/workers/ParentFrameTaskRunners.h"
 #include "core/workers/WorkletPendingTasks.h"
 #include "platform/heap/GarbageCollected.h"
 
 namespace blink {
 
 class ModuleScript;
 
+// A client of the module tree fetching living on the worklet context's thread.

[falken, 2017/05/30 01:33:23]

+1 to add a comment. It's a bit obscure though if you were to open this class on
its own. Could it make sense to just say 

"A ModuleTreeClient that lives on the worklet context's thread."

[nhiroki, 2017/05/30 02:14:23]

Done.

 class WorkletModuleTreeClient final
     : public GarbageCollectedFinalized<WorkletModuleTreeClient>,
       public ModuleTreeClient {
   USING_GARBAGE_COLLECTED_MIXIN(WorkletModuleTreeClient);
 
  public:
-  WorkletModuleTreeClient(Modulator*, WorkletPendingTasks*);
+  WorkletModuleTreeClient(Modulator*,
+                          ParentFrameTaskRunners*,
+                          WorkletPendingTasks*);
 
   // Implements ModuleTreeClient.
   void NotifyModuleTreeLoadFinished(ModuleScript*) final;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   Member<Modulator> modulator_;
-  Member<WorkletPendingTasks> pending_tasks_;
+  CrossThreadPersistent<ParentFrameTaskRunners> task_runners_;
+  CrossThreadPersistent<WorkletPendingTasks> pending_tasks_;
 };
 
 }  // namespace blink