Create an API around WorkerService that chrome consumes. Rename the existing WorkerService to Wor...

content/public/browser/worker_service.h

+// Copyright (c) 2011 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.
+
+#ifndef CONTENT_PUBLIC_BROWSER_WORKER_SERVICE_H_
+#define CONTENT_PUBLIC_BROWSER_WORKER_SERVICE_H_
+#pragma once
+
+#include "content/common/content_export.h"
+
+namespace content {
+
+class WorkerServiceObserver;
+
+// A singleton for managing HTML5 shared web workers. These are run in a
+// separate process, since multiple renderer processes can be talking to a
+// single shared worker.
+class WorkerService {
+ public:
+  virtual ~WorkerService() {}
+
+  // Returns the WorkerService singleton.
+  CONTENT_EXPORT static WorkerService* GetInstance();
+
+  virtual void AddObserver(WorkerServiceObserver* observer) = 0;
+  virtual void RemoveObserver(WorkerServiceObserver* observer) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_PLUGIN_SERVICE_H_