[Worklets] Add basic debugging to main thread worklets.

third_party/WebKit/Source/modules/worklet/WorkletGlobalScope.cpp

Index: third_party/WebKit/Source/modules/worklet/WorkletGlobalScope.cpp
diff --git a/third_party/WebKit/Source/modules/worklet/WorkletGlobalScope.cpp b/third_party/WebKit/Source/modules/worklet/WorkletGlobalScope.cpp
index 833e71552f61e8592ac584e8e784ac0461c1e075..520c0f4feb89b8971d4440fa0c5ab9f680bd8ea3 100644
--- a/third_party/WebKit/Source/modules/worklet/WorkletGlobalScope.cpp
+++ b/third_party/WebKit/Source/modules/worklet/WorkletGlobalScope.cpp
@@ -20,7 +20,7 @@ PassRefPtrWillBeRawPtr<WorkletGlobalScope> WorkletGlobalScope::create(LocalFrame
 }
 
 WorkletGlobalScope::WorkletGlobalScope(LocalFrame* frame, const KURL& url, const String& userAgent, PassRefPtr<SecurityOrigin> securityOrigin, v8::Isolate* isolate)
-    : LocalFrameLifecycleObserver(frame)
+    : MainThreadWorkletGlobalScope(frame)
     , m_url(url)
     , m_userAgent(userAgent)
     , m_scriptController(WorkerOrWorkletScriptController::create(this, isolate))
@@ -105,7 +105,7 @@ DEFINE_TRACE(WorkletGlobalScope)
     visitor->trace(m_console);
     ExecutionContext::trace(visitor);
     SecurityContext::trace(visitor);
-    LocalFrameLifecycleObserver::trace(visitor);
+    MainThreadWorkletGlobalScope::trace(visitor);
 }
 
 } // namespace blink