Introduce worker_devtools_agent_route_id for EmbeddedWorker.

content/browser/service_worker/embedded_worker_test_helper.cc

Index: content/browser/service_worker/embedded_worker_test_helper.cc
diff --git a/content/browser/service_worker/embedded_worker_test_helper.cc b/content/browser/service_worker/embedded_worker_test_helper.cc
index 67ca05af7263a6eb494457df9c369c179e4eb098..a24936cc1616f4f7b3b30a81c7b4cf2bedc01bf9 100644
--- a/content/browser/service_worker/embedded_worker_test_helper.cc
+++ b/content/browser/service_worker/embedded_worker_test_helper.cc
@@ -19,8 +19,12 @@ EmbeddedWorkerTestHelper::EmbeddedWorkerTestHelper(
     int mock_render_process_id)
     : context_(context->AsWeakPtr()),
       next_thread_id_(0),
+      next_routing_id_(new NextRoutingId()),
       weak_factory_(this) {
   registry()->AddChildProcessSender(mock_render_process_id, this);
+  registry()->AddChildProcessNextRoutingIDCallback(
+      mock_render_process_id,
+      base::Bind(&NextRoutingId::GetNext, next_routing_id_));
 }
 
 EmbeddedWorkerTestHelper::~EmbeddedWorkerTestHelper() {
@@ -32,6 +36,8 @@ void EmbeddedWorkerTestHelper::SimulateAddProcessToWorker(
   EmbeddedWorkerInstance* worker = registry()->GetWorker(embedded_worker_id);
   ASSERT_TRUE(worker);
   registry()->AddChildProcessSender(process_id, this);
+  registry()->AddChildProcessNextRoutingIDCallback(
+      process_id, base::Bind(&NextRoutingId::GetNext, next_routing_id_));
   worker->AddProcessReference(process_id);
 }
 
@@ -145,7 +151,8 @@ void EmbeddedWorkerTestHelper::OnStartWorkerStub(
     int embedded_worker_id,
     int64 service_worker_version_id,
     const GURL& scope,
-    const GURL& script_url) {
+    const GURL& script_url,
+    int worker_devtools_agent_route_id) {
   EmbeddedWorkerInstance* worker = registry()->GetWorker(embedded_worker_id);
   ASSERT_TRUE(worker != NULL);
   EXPECT_EQ(EmbeddedWorkerInstance::STARTING, worker->status());