[worklets] Add AudioWorkletGlobalScope and AudioWorkletThread

third_party/WebKit/Source/modules/webaudio/AudioWorkletGlobalScope.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/AudioWorkletGlobalScope.h"
+
+#include "platform/weborigin/SecurityOrigin.h"
+
+namespace blink {
+
+AudioWorkletGlobalScope* AudioWorkletGlobalScope::create(
+    const KURL& url,
+    const String& userAgent,
+    PassRefPtr<SecurityOrigin> securityOrigin,
+    v8::Isolate* isolate,
+    WorkerThread* thread) {
+  return new AudioWorkletGlobalScope(url, userAgent, std::move(securityOrigin),
+                                     isolate, thread);
+}
+
+AudioWorkletGlobalScope::AudioWorkletGlobalScope(
+    const KURL& url,
+    const String& userAgent,
+    PassRefPtr<SecurityOrigin> securityOrigin,
+    v8::Isolate* isolate,
+    WorkerThread* thread)
+    : ThreadedWorkletGlobalScope(url,
+                                 userAgent,
+                                 std::move(securityOrigin),
+                                 isolate,
+                                 thread) {}
+
+AudioWorkletGlobalScope::~AudioWorkletGlobalScope() {}
+
+}  // namespace blink