Add some empty classes for the embedded SharedWorker.

content/browser/worker_host/shared_worker_host.cc

Index: content/browser/worker_host/shared_worker_host.cc
diff --git a/content/browser/worker_host/shared_worker_host.cc b/content/browser/worker_host/shared_worker_host.cc
new file mode 100644
index 0000000000000000000000000000000000000000..eaba11d01463214aabb4f4b47d800da2917ac77c
--- /dev/null
+++ b/content/browser/worker_host/shared_worker_host.cc
@@ -0,0 +1,18 @@
+// Copyright 2014 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/worker_host/shared_worker_host.h"
+
+#include "content/public/browser/browser_thread.h"
+
+namespace content {

[kinuko, 2014/02/12 08:09:49]

nit: ditto

[horo, 2014/02/12 08:43:45]

Done.

+SharedWorkerHost::SharedWorkerHost(SharedWorkerInstance* instance)
+    : instance_(instance) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+}
+
+SharedWorkerHost::~SharedWorkerHost() {
+}
+
+}  // namespace content