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

Source/core/inspector/InspectorRuntimeAgent.cpp

Index: Source/core/inspector/InspectorRuntimeAgent.cpp
diff --git a/Source/core/inspector/InspectorRuntimeAgent.cpp b/Source/core/inspector/InspectorRuntimeAgent.cpp
index ebd7231af6afa752932bf1f2da245086875b505c..aa7aafb165d1990765338da6ff09166bcf402730 100644
--- a/Source/core/inspector/InspectorRuntimeAgent.cpp
+++ b/Source/core/inspector/InspectorRuntimeAgent.cpp
@@ -154,6 +154,11 @@ void InspectorRuntimeAgent::run(ErrorString*)
 {
 }
 
+void InspectorRuntimeAgent::isPausedWorker(ErrorString*, bool* out_result)
+{
+    *out_result = false;
+}
+
 void InspectorRuntimeAgent::setFrontend(InspectorFrontend* frontend)
 {
     m_frontend = frontend->runtime();