Reorganizes Chromecast code to better reflect functional dependencies.

chromecast/service/cast_service.h

-// 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.
-
-#ifndef CHROMECAST_SERVICE_CAST_SERVICE_H_
-#define CHROMECAST_SERVICE_CAST_SERVICE_H_
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-
-namespace base {
-class ThreadChecker;
-}
-
-namespace content {
-class BrowserContext;
-}
-
-namespace net {
-class URLRequestContextGetter;
-}
-
-namespace chromecast {
-
-class CastService {
- public:
-  // A callback that will be invoked when the user changes the opt-in stats
-  // value.
-  typedef base::Callback<void(bool)> OptInStatsChangedCallback;
-
-  // Create() takes a separate url request context getter because the request
-  // context getter obtained through the browser context might not be
-  // appropriate for the url requests made by the cast service/reciever.
-  // For example, on Chromecast, it is needed to pass in a system url request
-  // context getter that would set the request context for NSS, which the main
-  // getter doesn't do.
-  static CastService* Create(
-      content::BrowserContext* browser_context,
-      net::URLRequestContextGetter* request_context_getter,
-      const OptInStatsChangedCallback& opt_in_stats_callback);
-
-  virtual ~CastService();
-
-  // Start/stop the cast service.
-  void Start();
-  void Stop();
-
- protected:
-  CastService(content::BrowserContext* browser_context,
-              const OptInStatsChangedCallback& opt_in_stats_callback);
-  virtual void Initialize() = 0;
-
-  // Implementation-specific start/stop behavior.
-  virtual void StartInternal() = 0;
-  virtual void StopInternal() = 0;
-
-  content::BrowserContext* browser_context() const { return browser_context_; }
-  const OptInStatsChangedCallback& opt_in_stats_callback() const {
-    return opt_in_stats_callback_;
-  }
-
- private:
-  content::BrowserContext* const browser_context_;
-  const OptInStatsChangedCallback opt_in_stats_callback_;
-  bool stopped_;
-  const scoped_ptr<base::ThreadChecker> thread_checker_;
-
-  DISALLOW_COPY_AND_ASSIGN(CastService);
-};
-
-}  // namespace chromecast
-
-#endif  // CHROMECAST_SERVICE_CAST_SERVICE_H_