[Worklets] Add basic debugging to main thread worklets.

third_party/WebKit/Source/bindings/core/v8/WorkerOrWorkletScriptController.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 25 matching lines @@
 #include "bindings/core/v8/V8DedicatedWorkerGlobalScope.h"
 #include "bindings/core/v8/V8ErrorHandler.h"
 #include "bindings/core/v8/V8Initializer.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "bindings/core/v8/V8ScriptRunner.h"
 #include "bindings/core/v8/V8SharedWorkerGlobalScope.h"
 #include "bindings/core/v8/V8WorkerGlobalScope.h"
 #include "bindings/core/v8/WrapperTypeInfo.h"
 #include "core/events/ErrorEvent.h"
 #include "core/frame/DOMTimer.h"
+#include "core/inspector/MainThreadDebugger.h"
 #include "core/inspector/WorkerThreadDebugger.h"
+#include "core/workers/MainThreadWorkletGlobalScope.h"
 #include "core/workers/WorkerObjectProxy.h"
 #include "core/workers/WorkerOrWorkletGlobalScope.h"
 #include "core/workers/WorkerThread.h"
 #include "platform/heap/ThreadState.h"
 #include "public/platform/Platform.h"
 #include <v8.h>
 
 namespace blink {
 
 class WorkerOrWorkletScriptController::ExecutionState final {
@@ skipping 84 matching lines @@
         return true;
 
     v8::Local<v8::Context> context = v8::Context::New(m_isolate);
     if (context.IsEmpty())
         return false;
 
     m_scriptState = ScriptState::create(context, m_world);
 
     ScriptState::Scope scope(m_scriptState.get());
 
-    // Name new context for debugging.
-    WorkerThreadDebugger::setContextDebugData(context);
+    // Name new context for debugging. For main thread worklet global scopes
+    // this is done once the context is initialized.
+    if (m_globalScope->isWorkerGlobalScope()) {
+        WorkerThreadDebugger::setContextDebugData(context);
+    }
 
     // Create a new JS object and use it as the prototype for the shadow global object.
     const WrapperTypeInfo* wrapperTypeInfo = m_globalScope->getScriptWrappable()->wrapperTypeInfo();
 
     v8::Local<v8::Function> globalScopeConstructor = m_scriptState->perContextData()->constructorForType(wrapperTypeInfo);
     if (globalScopeConstructor.IsEmpty())
         return false;
 
     v8::Local<v8::Object> jsGlobalScope;
     if (!V8ObjectConstructor::newInstance(m_isolate, globalScopeConstructor).ToLocal(&jsGlobalScope)) {
@@ skipping 135 matching lines @@
         m_executionState->m_errorEventFromImportedScript = errorEvent;
     exceptionState.rethrowV8Exception(V8ThrowException::createGeneralError(m_isolate, errorMessage));
 }
 
 DEFINE_TRACE(WorkerOrWorkletScriptController)
 {
     visitor->trace(m_globalScope);
 }
 
 } // namespace blink