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

Source/core/inspector/WorkerRuntimeAgent.cpp

Index: Source/core/inspector/WorkerRuntimeAgent.cpp
diff --git a/Source/core/inspector/WorkerRuntimeAgent.cpp b/Source/core/inspector/WorkerRuntimeAgent.cpp
index d1f8aef9f6e0d1e45e7eec23a406a75f74202fdc..ff453d9e2b4711f3d553a789110ab261602995ab 100644
--- a/Source/core/inspector/WorkerRuntimeAgent.cpp
+++ b/Source/core/inspector/WorkerRuntimeAgent.cpp
@@ -94,6 +94,11 @@ void WorkerRuntimeAgent::run(ErrorString*)
     m_paused = false;
 }
 
+void WorkerRuntimeAgent::isRunRequired(ErrorString*, bool* out_result)
+{
+    *out_result = m_paused;
+}
+
 void WorkerRuntimeAgent::willEvaluateWorkerScript(WorkerGlobalScope* context, int workerThreadStartMode)
 {
     if (workerThreadStartMode != PauseWorkerGlobalScopeOnStart)