More scaffolding, add class ServiceWorkerProviderHost.

content/browser/service_worker/service_worker_provider_host.cc

Index: content/browser/service_worker/service_worker_provider_host.cc
diff --git a/content/browser/service_worker/service_worker_provider_host.cc b/content/browser/service_worker/service_worker_provider_host.cc
new file mode 100644
index 0000000000000000000000000000000000000000..22672ea60ce0dcea10cd4df8c1d38f19948f4cb1
--- /dev/null
+++ b/content/browser/service_worker/service_worker_provider_host.cc
@@ -0,0 +1,16 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/service_worker/service_worker_provider_host.h"
+
+namespace content {
+
+ServiceWorkerProviderHost::ServiceWorkerProviderHost(int provider_id)
+    : provider_id_(provider_id) {
+}
+
+ServiceWorkerProviderHost::~ServiceWorkerProviderHost() {
+}
+
+}  // namespace content