ServiceWorker: Create sequenced task runner for database

content/browser/service_worker/service_worker_context_wrapper.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/service_worker_context.h"
 
 namespace base {
 class FilePath;
+class SequencedTaskRunner;
 }
 
 namespace quota {
 class QuotaManagerProxy;
 }
 
 namespace content {
 
 class BrowserContext;
 class ServiceWorkerContextCore;
@@ skipping 25 matching lines @@
       const ResultCallback& continuation) OVERRIDE;
   virtual void UnregisterServiceWorker(const GURL& pattern,
                                        const ResultCallback& continuation)
       OVERRIDE;
 
   void AddObserver(ServiceWorkerContextObserver* observer);
   void RemoveObserver(ServiceWorkerContextObserver* observer);
 
  private:
   friend class base::RefCountedThreadSafe<ServiceWorkerContextWrapper>;
+  friend class EmbeddedWorkerTestHelper;
   friend class ServiceWorkerProcessManager;
   virtual ~ServiceWorkerContextWrapper();
 
+  void InitForTesting(const base::FilePath& user_data_directory,
+                      base::SequencedTaskRunner* database_task_runner,
+                      quota::QuotaManagerProxy* quota_manager_proxy);
+  void InitInternal(const base::FilePath& user_data_directory,
+                    base::SequencedTaskRunner* database_task_runner,
+                    quota::QuotaManagerProxy* quota_manager_proxy);
+
   const scoped_refptr<ObserverListThreadSafe<ServiceWorkerContextObserver> >
       observer_list_;
   // Cleared in Shutdown():
   BrowserContext* browser_context_;
   scoped_ptr<ServiceWorkerContextCore> context_core_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_