Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/modules/worklet/Worklet.h

Index: third_party/WebKit/Source/modules/worklet/Worklet.h
diff --git a/third_party/WebKit/Source/modules/worklet/Worklet.h b/third_party/WebKit/Source/modules/worklet/Worklet.h
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+// 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.
+
+#ifndef Worklet_h
+#define Worklet_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "modules/worklet/WorkletGlobalScope.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class ExecutionContext;
+
+class Worklet final : public GarbageCollectedFinalized<Worklet>, public ScriptWrappable {
+    WTF_MAKE_NONCOPYABLE(Worklet);
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    // The ExecutionContext argument is the parent document of the Worklet. The
+    // Worklet inherits the url and userAgent, from the document.
+    static Worklet* create(ExecutionContext*);
+
+    DECLARE_TRACE();
+
+private:
+    explicit Worklet(ExecutionContext*);
+
+    RefPtrWillBeMember<WorkletGlobalScope> m_workletGlobalScope;
+};
+
+} // namespace blink
+
+#endif // Worklet_h