[DevTools] Postpone more agents instantiation until attached.

third_party/WebKit/Source/core/inspector/InspectorWorkerAgent.cpp

Index: third_party/WebKit/Source/core/inspector/InspectorWorkerAgent.cpp
diff --git a/third_party/WebKit/Source/core/inspector/InspectorWorkerAgent.cpp b/third_party/WebKit/Source/core/inspector/InspectorWorkerAgent.cpp
index 227986c525f82e132d4506e958bb386b3276dd8b..78b621f01dc4b11c2a2e42541df3ac3fba0bd930 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorWorkerAgent.cpp
+++ b/third_party/WebKit/Source/core/inspector/InspectorWorkerAgent.cpp
@@ -45,14 +45,14 @@ static const char workerInspectionEnabled[] = "workerInspectionEnabled";
 static const char autoconnectToWorkers[] = "autoconnectToWorkers";
 };
 
-PassOwnPtrWillBeRawPtr<InspectorWorkerAgent> InspectorWorkerAgent::create(PageConsoleAgent* consoleAgent)
+PassOwnPtrWillBeRawPtr<InspectorWorkerAgent> InspectorWorkerAgent::create()
 {
-    return adoptPtrWillBeNoop(new InspectorWorkerAgent(consoleAgent));
+    return adoptPtrWillBeNoop(new InspectorWorkerAgent());
 }
 
-InspectorWorkerAgent::InspectorWorkerAgent(PageConsoleAgent* consoleAgent)
+InspectorWorkerAgent::InspectorWorkerAgent()
     : InspectorBaseAgent<InspectorWorkerAgent, protocol::Frontend::Worker>("Worker")
-    , m_consoleAgent(consoleAgent)
+    , m_consoleAgent(nullptr)
 {
 }
 
@@ -128,6 +128,11 @@ void InspectorWorkerAgent::setTracingSessionId(const String& sessionId)
         info.key->writeTimelineStartedEvent(sessionId, info.value.id);
 }
 
+void InspectorWorkerAgent::setPageConsoleAgent(PageConsoleAgent* consoleAgent)
+{
+    m_consoleAgent = consoleAgent;
+}
+
 bool InspectorWorkerAgent::shouldPauseDedicatedWorkerOnStart()
 {
     return m_state->booleanProperty(WorkerAgentState::autoconnectToWorkers, false);
@@ -206,6 +211,7 @@ InspectorWorkerAgent::WorkerAgentClient::WorkerAgentClient(protocol::Frontend::W
 {
     ASSERT(!proxy->pageInspector());
 }
+
 InspectorWorkerAgent::WorkerAgentClient::~WorkerAgentClient()
 {
     ASSERT(!m_frontend);
@@ -236,6 +242,7 @@ void InspectorWorkerAgent::WorkerAgentClient::dispatchMessageFromWorker(const St
 {
     m_frontend->dispatchMessageFromWorker(m_id, message);
 }
+
 void InspectorWorkerAgent::WorkerAgentClient::workerConsoleAgentEnabled(WorkerGlobalScopeProxy* proxy)
 {
     m_consoleAgent->workerConsoleAgentEnabled(proxy);