Initial implementation of bindings and basic classes for worklets.

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

Index: third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.h
diff --git a/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.h b/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.h
new file mode 100644
index 0000000000000000000000000000000000000000..a418dbfafdcd4185dd0a5e7b5be20dd1b1e03bcc
--- /dev/null
+++ b/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.h
@@ -0,0 +1,26 @@
+// 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 WorkerOrWorkletGlobalScope_h
+#define WorkerOrWorkletGlobalScope_h
+
+#include "core/dom/ExecutionContext.h"
+
+namespace blink {
+
+class ExecutionContext;
+class ScriptWrappable;
+class WorkerOrWorkletScriptController;
+
+class CORE_EXPORT WorkerOrWorkletGlobalScope : public ExecutionContext {
+public:
+    virtual ScriptWrappable* scriptWrappable() const = 0;
+    virtual WorkerOrWorkletScriptController* script() = 0;
+};

[kinuko, 2016/01/13 02:59:20]

This new mostly pure interface class looks fine to me given that it has its
benefit, thanks for making repeated changes. (We might start having more in
common, but wanted to start with minimum)

[ikilpatrick, 2016/01/13 04:12:29]

Great, thanks.

+
+DEFINE_TYPE_CASTS(WorkerOrWorkletGlobalScope, ExecutionContext, context, (context->isWorkerGlobalScope() || context->isWorkletGlobalScope()), (context.isWorkerGlobalScope() || context.isWorkletGlobalScope()));
+
+} // namespace blink
+
+#endif // WorkerOrWorkletGlobalScope_h