[POC] Implement "module responses map" concept

third_party/WebKit/Source/core/dom/TaskRunnerHelper.cpp

 // Copyright 2016 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/TaskRunnerHelper.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/LocalFrame.h"
 #include "core/workers/MainThreadWorkletGlobalScope.h"
@@ skipping 62 matching lines @@
   return Get(type, document ? document->GetFrame() : nullptr);
 }
 
 RefPtr<WebTaskRunner> TaskRunnerHelper::Get(
     TaskType type,
     ExecutionContext* execution_context) {
   if (!execution_context)
     return Get(type, ToDocument(execution_context));
   if (execution_context->IsDocument())
     return Get(type, ToDocument(execution_context));
-  if (execution_context->IsMainThreadWorkletGlobalScope()) {
-    return Get(type,
-               ToMainThreadWorkletGlobalScope(execution_context)->GetFrame());
-  }
   if (execution_context->IsWorkerOrWorkletGlobalScope())
     return Get(type, ToWorkerOrWorkletGlobalScope(execution_context));
   execution_context = nullptr;
   return Get(type, ToDocument(execution_context));
 }
 
 RefPtr<WebTaskRunner> TaskRunnerHelper::Get(TaskType type,
                                             ScriptState* script_state) {
   return Get(type,
              script_state ? ExecutionContext::From(script_state) : nullptr);
 }
 
 RefPtr<WebTaskRunner> TaskRunnerHelper::Get(
     TaskType type,
     WorkerOrWorkletGlobalScope* global_scope) {
   DCHECK(global_scope);
   DCHECK(global_scope->IsContextThread());
+  if (global_scope->IsMainThreadWorkletGlobalScope())
+    return Get(type, ToMainThreadWorkletGlobalScope(global_scope)->GetFrame());
   return Get(type, global_scope->GetThread());
 }
 
 RefPtr<WebTaskRunner> TaskRunnerHelper::Get(TaskType type,
                                             WorkerThread* worker_thread) {
   switch (type) {
     case TaskType::kDOMManipulation:
     case TaskType::kUserInteraction:
     case TaskType::kNetworking:
     case TaskType::kHistoryTraversal:
@@ skipping 20 matching lines @@
       // TODO(nhiroki): Identify which tasks can be throttled / suspendable and
       // move them into other task runners. See also comments in
       // Get(LocalFrame). (https://crbug.com/670534)
       return worker_thread->GetGlobalScopeScheduler()->UnthrottledTaskRunner();
   }
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace blink