AudioWorklet prototype

third_party/WebKit/Source/modules/webaudio/AudioWorkletThread.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 "modules/webaudio/AudioWorkletThread.h"
 
 #include <memory>
 #include "core/workers/GlobalScopeCreationParams.h"
 #include "core/workers/WorkerBackingThread.h"
 #include "modules/webaudio/AudioWorkletGlobalScope.h"
@@ skipping 47 matching lines @@
       BLINK_FROM_HERE, CrossThreadBind(&CollectAllGarbageOnAudioWorkletThread,
                                        CrossThreadUnretained(&done_event)));
   done_event.Wait();
 }
 
 void AudioWorkletThread::EnsureSharedBackingThread() {
   DCHECK(IsMainThread());
   WorkletThreadHolder<AudioWorkletThread>::EnsureInstance("AudioWorkletThread");
 }
 
+void AudioWorkletThread::SetSharedBackingThread(WebThread* thread) {
+  DCHECK(IsMainThread());
+  WorkletThreadHolder<AudioWorkletThread>::EnsureInstance(thread);
+}
+
 void AudioWorkletThread::ClearSharedBackingThread() {
   DCHECK(IsMainThread());
   WorkletThreadHolder<AudioWorkletThread>::ClearInstance();
 }
 
 void AudioWorkletThread::CreateSharedBackingThreadForTest() {
   WorkletThreadHolder<AudioWorkletThread>::CreateForTest("AudioWorkletThread");
 }
 
 WorkerOrWorkletGlobalScope* AudioWorkletThread::CreateWorkerGlobalScope(
     std::unique_ptr<GlobalScopeCreationParams> creation_params) {
   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("audio-worklet"),
                "AudioWorkletThread::createWorkerGlobalScope");
 
   RefPtr<SecurityOrigin> security_origin =
       SecurityOrigin::Create(creation_params->script_url);
   if (creation_params->starter_origin_privilege_data) {
     security_origin->TransferPrivilegesFrom(
         std::move(creation_params->starter_origin_privilege_data));
   }
 
   return AudioWorkletGlobalScope::Create(
       creation_params->script_url, creation_params->user_agent,
       std::move(security_origin), this->GetIsolate(), this,
       creation_params->worker_clients);
 }
 
 }  // namespace blink