[Do not submit] Worklet implementation.

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

Index: third_party/WebKit/Source/core/workers/AbstractGlobalScope.h
diff --git a/third_party/WebKit/Source/core/workers/AbstractGlobalScope.h b/third_party/WebKit/Source/core/workers/AbstractGlobalScope.h
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+++ b/third_party/WebKit/Source/core/workers/AbstractGlobalScope.h
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+// Copyright 2015 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.
+
+#ifndef AbstractGlobalScope_h
+#define AbstractGlobalScope_h
+
+#include "core/dom/ExecutionContext.h"
+#include "core/dom/SecurityContext.h"
+#include "core/events/EventTarget.h"
+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class GlobalScopeScriptController;
+
+class AbstractGlobalScope : public SecurityContext, public ExecutionContext {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(AbstractGlobalScope);
+public:
+    ~AbstractGlobalScope() override { };
+
+    virtual ExecutionContext* executionContext() const = 0;
+    virtual GlobalScopeScriptController* script() = 0;
+    virtual v8::Isolate* isolate() const = 0;
+    virtual void didStopRunLoop() { }
+
+    DEFINE_INLINE_TRACE() {
+        ExecutionContext::trace(visitor);
+        SecurityContext::trace(visitor);
+    }
+private:
+    void didUpdateSecurityOrigin() final { }
+};
+
+DEFINE_TYPE_CASTS(AbstractGlobalScope, ExecutionContext, value, (value->isWorkerGlobalScope() || value->isWorkletGlobalScope()), (value.isWorkerGlobalScope() || value.isWorkletGlobalScope()));
+
+} // namespace blink
+
+#endif // AbstractGlobalScope_h