PlzNavigate: Make ServiceWorker work with PlzNavigate.

content/browser/service_worker/service_worker_context_wrapper.cc

Index: content/browser/service_worker/service_worker_context_wrapper.cc
diff --git a/content/browser/service_worker/service_worker_context_wrapper.cc b/content/browser/service_worker/service_worker_context_wrapper.cc
index 7d1c05e408c56e19181b57e1093f227a51c8d73a..fca3329dce24dd79b1316ec38f446b3d75b305f0 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.cc
+++ b/content/browser/service_worker/service_worker_context_wrapper.cc
@@ -620,6 +620,12 @@ void ServiceWorkerContextWrapper::RemoveObserver(
   observer_list_->RemoveObserver(observer);
 }
 
+void ServiceWorkerContextWrapper::RemoveNavigationProviderHost(
+    int provider_id) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  context_core_->RemoveNavigationProviderHost(provider_id);
+}
+
 void ServiceWorkerContextWrapper::InitInternal(
     const base::FilePath& user_data_directory,
     scoped_ptr<ServiceWorkerDatabaseTaskManager> database_task_manager,