Introduce WorkletGlobalScopeProxy interface.

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

Index: third_party/WebKit/Source/modules/worklet/WorkletThreadStartupData.h
diff --git a/third_party/WebKit/Source/modules/worklet/WorkletThreadStartupData.h b/third_party/WebKit/Source/modules/worklet/WorkletThreadStartupData.h
new file mode 100644
index 0000000000000000000000000000000000000000..bf2eb4b7fab59e9cdeaf20d7c8ca9d94aa586459
--- /dev/null
+++ b/third_party/WebKit/Source/modules/worklet/WorkletThreadStartupData.h
@@ -0,0 +1,35 @@
+// 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 WorkletThreadStartupData_h
+#define WorkletThreadStartupData_h
+
+namespace blink {
+
+class WorkletThreadStartupData final {
+    WTF_MAKE_NONCOPYABLE(WorkletThreadStartupData);
+    USING_FAST_MALLOC(WorkletThreadStartupData);
+public:
+    static PassOwnPtr<WorkletThreadStartupData> create(const KURL& url, const String& userAgent, PassRefPtr<SecurityOrigin> securityOrigin)
+    {
+        return adoptPtr(new WorkletThreadStartupData(url, userAgent, securityOrigin));
+    }
+    ~WorkletThreadStartupData() { }
+
+    KURL m_url;
+    String m_userAgent;
+    RefPtr<SecurityOrigin> m_securityOrigin;
+
+private:
+    WorkletThreadStartupData(const KURL& url, const String& userAgent, PassRefPtr<SecurityOrigin> securityOrigin)
+        : m_url(url)
+        , m_userAgent(userAgent)
+        , m_securityOrigin(securityOrigin)
+    {
+    }
+};
+
+} // namespace blink
+
+#endif // WorkletThreadStartupData_h