Introduce WorkletGlobalScopeProxy interface.

third_party/WebKit/Source/core/inspector/WorkerThreadDebugger.h

Index: third_party/WebKit/Source/core/inspector/WorkerThreadDebugger.h
diff --git a/third_party/WebKit/Source/core/inspector/WorkerThreadDebugger.h b/third_party/WebKit/Source/core/inspector/WorkerThreadDebugger.h
index a523e35e00a206fc35ae338ae91504b1e1b7d818..b0b5163af6597d4908aef33fce7948e1e2a9b86f 100644
--- a/third_party/WebKit/Source/core/inspector/WorkerThreadDebugger.h
+++ b/third_party/WebKit/Source/core/inspector/WorkerThreadDebugger.h
@@ -35,12 +35,12 @@
 
 namespace blink {
 
-class WorkerThread;
+class WorkerOrWorkletThread;
 
 class WorkerThreadDebugger final : public ThreadDebugger {
     WTF_MAKE_NONCOPYABLE(WorkerThreadDebugger);
 public:
-    explicit WorkerThreadDebugger(WorkerThread*, v8::Isolate*);
+    explicit WorkerThreadDebugger(WorkerOrWorkletThread*, v8::Isolate*);
     ~WorkerThreadDebugger() override;
 
     static WorkerThreadDebugger* from(v8::Isolate*);
@@ -64,7 +64,7 @@ protected:
     void reportMessageToConsole(v8::Local<v8::Context>, ConsoleMessage*);
 
 private:
-    WorkerThread* m_workerThread;
+    WorkerOrWorkletThread* m_workerThread;
 };
 
 } // namespace blink