Add isPausedWorker command to Runtime and use it to auto attach DevTools to ServiceWorker.

Source/core/inspector/WorkerRuntimeAgent.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 76 matching lines @@
 void WorkerRuntimeAgent::unmuteConsole()
 {
     // We don't need to mute console for workers.
 }
 
 void WorkerRuntimeAgent::run(ErrorString*)
 {
     m_paused = false;
 }
 
+void WorkerRuntimeAgent::isPausedWorker(ErrorString*, bool* out_result)
+{
+    *out_result = m_paused;
+}
+
 void WorkerRuntimeAgent::willEvaluateWorkerScript(WorkerGlobalScope* context, int workerThreadStartMode)
 {
     if (workerThreadStartMode != PauseWorkerGlobalScopeOnStart)
         return;
 
     m_paused = true;
     MessageQueueWaitResult result;
     do {
         result = context->thread()->runLoop().runDebuggerTask();
     // Keep waiting until execution is resumed.
     } while (result == MessageQueueMessageReceived && m_paused);
 }
 
 } // namespace WebCore