[Worklets] Add basic debugging to main thread worklets.

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

 // 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 WorkletGlobalScope_h
 #define WorkletGlobalScope_h
 
 #include "bindings/core/v8/ScriptCallStack.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/ExecutionContextTask.h"
 #include "core/dom/SecurityContext.h"
-#include "core/frame/LocalFrameLifecycleObserver.h"
 #include "core/inspector/ConsoleMessage.h"
+#include "core/workers/MainThreadWorkletGlobalScope.h"
 #include "core/workers/WorkerOrWorkletGlobalScope.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class EventQueue;
 class LocalFrame;
 class WorkerOrWorkletScriptController;
 class WorkletConsole;
 
-class WorkletGlobalScope : public RefCountedWillBeGarbageCollectedFinalized<WorkletGlobalScope>, public SecurityContext, public WorkerOrWorkletGlobalScope, public ScriptWrappable, public LocalFrameLifecycleObserver {
+class WorkletGlobalScope : public RefCountedWillBeGarbageCollectedFinalized<WorkletGlobalScope>, public SecurityContext, public MainThreadWorkletGlobalScope, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WorkletGlobalScope);
 public:
 #if !ENABLE(OILPAN)
     using RefCounted<WorkletGlobalScope>::ref;
     using RefCounted<WorkletGlobalScope>::deref;
 #endif
 
     // The url, userAgent and securityOrigin arguments are inherited from the
     // parent ExecutionContext for Worklets.
@@ skipping 55 matching lines @@
     KURL m_url;
     String m_userAgent;
     OwnPtrWillBeMember<WorkerOrWorkletScriptController> m_scriptController;
 };
 
 DEFINE_TYPE_CASTS(WorkletGlobalScope, ExecutionContext, context, context->isWorkletGlobalScope(), context.isWorkletGlobalScope());
 
 } // namespace blink
 
 #endif // WorkletGlobalScope_h