Add basic browser test for EmbeddedWorker/ServiceWorker

content/browser/service_worker/service_worker_context_core.cc

Index: content/browser/service_worker/service_worker_context_core.cc
diff --git a/content/browser/service_worker/service_worker_context_core.cc b/content/browser/service_worker/service_worker_context_core.cc
index 88897ac802623a19c41582ce5bb42e3a83dcc0a0..0a30b7bba14fdd075b8344694fbdea823b9a16a9 100644
--- a/content/browser/service_worker/service_worker_context_core.cc
+++ b/content/browser/service_worker/service_worker_context_core.cc
@@ -99,4 +99,19 @@ void ServiceWorkerContextCore::RegistrationComplete(
   callback.Run(status, registration->id());
 }
 
+void ServiceWorkerContextCore::GetAllProviderHosts(
+    std::vector<ServiceWorkerProviderHost*>* providers) {
+  DCHECK(providers);
+
+  ProcessToProviderMap::iterator map_iter(&providers_);
+  while (!map_iter.IsAtEnd()) {
+    ProviderMap::iterator iter(map_iter.GetCurrentValue());
+    while (!iter.IsAtEnd()) {
+      providers->push_back(iter.GetCurrentValue());
+      iter.Advance();
+    }
+    map_iter.Advance();
+  }
+}
+
 }  // namespace content