DevTools: disable interrupts when dispatching inspector commands

Source/core/inspector/WorkerInspectorController.cpp

 /*
  * Copyright (C) 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:
  *
  *     * 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 177 matching lines @@
 {
     ASSERT(!m_frontend);
     connectFrontend();
     m_state->loadFromCookie(inspectorCookie);
 
     m_agents.restore();
 }
 
 void WorkerInspectorController::dispatchMessageFromFrontend(const String& message)
 {
-    m_inspectorTaskRunner->setIgnoreInterrupts(true);
+    InspectorTaskRunner::IgnoreInterruptsScope scope(m_inspectorTaskRunner.get());
     if (m_backendDispatcher)
         m_backendDispatcher->dispatch(message);
-    m_inspectorTaskRunner->setIgnoreInterrupts(false);
 }
 
 void WorkerInspectorController::dispose()
 {
     m_instrumentingAgents->reset();
     disconnectFrontend();
 }
 
 void WorkerInspectorController::interruptAndDispatchInspectorCommands()
 {
@@ skipping 30 matching lines @@
     visitor->trace(m_injectedScriptManager);
     visitor->trace(m_workerThreadDebugger);
     visitor->trace(m_backendDispatcher);
     visitor->trace(m_agents);
     visitor->trace(m_workerDebuggerAgent);
     visitor->trace(m_asyncCallTracker);
     visitor->trace(m_workerRuntimeAgent);
 }
 
 } // namespace blink