Introduce WorkletGlobalScopeProxy interface.

third_party/WebKit/Source/modules/compositorworker/CompositorWorklet.cpp

Index: third_party/WebKit/Source/modules/compositorworker/CompositorWorklet.cpp
diff --git a/third_party/WebKit/Source/modules/compositorworker/CompositorWorklet.cpp b/third_party/WebKit/Source/modules/compositorworker/CompositorWorklet.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..07c1b9b638126893ae690084f60d77cc0973cfee
--- /dev/null
+++ b/third_party/WebKit/Source/modules/compositorworker/CompositorWorklet.cpp
@@ -0,0 +1,36 @@
+// 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/compositorworker/CompositorWorklet.h"
+
+#include "modules/compositorworker/CompositorWorkletGlobalScopeProxy.h"
+
+namespace blink {
+
+CompositorWorklet* CompositorWorklet::create(LocalFrame* frame, ExecutionContext* executionContext)
+{
+    return new CompositorWorklet(frame, executionContext);
+}
+
+CompositorWorklet::CompositorWorklet(LocalFrame*, ExecutionContext* executionContext)
+    : Worklet(executionContext)
+    , m_workletGlobalScopeProxy(CompositorWorkletGlobalScopeProxy::create(executionContext->url(), executionContext->userAgent(), executionContext->getSecurityOrigin()))
+{
+}
+
+CompositorWorklet::~CompositorWorklet()
+{
+}
+
+WorkletGlobalScopeProxy* CompositorWorklet::workletGlobalScopeProxy() const
+{
+    return m_workletGlobalScopeProxy;
+}
+
+DEFINE_TRACE(CompositorWorklet)
+{
+    Worklet::trace(visitor);
+}
+
+} // namespace blink