Worker: Fix broken GC logic on Dedicated Worker while DOMTimer is set

third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009, 2011 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 217 matching lines @@
     RELEASE_NOTREACHED();
     return v8::Local<v8::Object>();
 }
 
 v8::Local<v8::Object> WorkerGlobalScope::associateWithWrapper(v8::Isolate*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper)
 {
     RELEASE_NOTREACHED(); // same as wrap method
     return v8::Local<v8::Object>();
 }
 
+bool WorkerGlobalScope::hasPendingActivity() const
+{
+    return m_timers.hasInstalledTimeout();
+}
+
 bool WorkerGlobalScope::isJSExecutionForbidden() const
 {
     return m_scriptController->isExecutionForbidden();
 }
 
 bool WorkerGlobalScope::isContextThread() const
 {
     return thread()->isCurrentThread();
 }
 
@@ skipping 32 matching lines @@
     errorMessage = getSecurityOrigin()->isPotentiallyTrustworthyErrorMessage();
     return false;
 }
 
 ExecutionContext* WorkerGlobalScope::getExecutionContext() const
 {
     return const_cast<WorkerGlobalScope*>(this);
 }
 
 WorkerGlobalScope::WorkerGlobalScope(const KURL& url, const String& userAgent, WorkerThread* thread, double timeOrigin, std::unique_ptr<SecurityOrigin::PrivilegeData> starterOriginPrivilageData, WorkerClients* workerClients)
-    : m_url(url)
+    : ActiveScriptWrappable(this)
+    , m_url(url)
     , m_userAgent(userAgent)
     , m_v8CacheOptions(V8CacheOptionsDefault)
     , m_scriptController(WorkerOrWorkletScriptController::create(this, thread->isolate()))
     , m_thread(thread)
     , m_closing(false)
     , m_eventQueue(WorkerEventQueue::create(this))
     , m_workerClients(workerClients)
     , m_timers(Platform::current()->currentThread()->scheduler()->timerTaskRunner()->clone())
     , m_timeOrigin(timeOrigin)
     , m_consoleMessageStorage(new ConsoleMessageStorage())
@@ skipping 57 matching lines @@
     visitor->trace(m_consoleMessageStorage);
     visitor->trace(m_eventListeners);
     visitor->trace(m_pendingErrorEvents);
     ExecutionContext::trace(visitor);
     EventTargetWithInlineData::trace(visitor);
     SecurityContext::trace(visitor);
     Supplementable<WorkerGlobalScope>::trace(visitor);
 }
 
 } // namespace blink