Componentize component_updater: Split content::ResourceThrottle from CUS.

chrome/browser/component_updater/crx_update_item.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 CHROME_BROWSER_COMPONENT_UPDATER_CRX_UPDATE_ITEM_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_CRX_UPDATE_ITEM_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "base/version.h"
 #include "chrome/browser/component_updater/component_updater_service.h"
 #include "chrome/browser/component_updater/crx_downloader.h"
 
 namespace component_updater {
 
-class CUResourceThrottle;
-
 // This is the one and only per-item state structure. Designed to be hosted
 // in a std::vector or a std::list. The two main members are |component|
 // which is supplied by the the component updater client and |status| which
 // is modified as the item is processed by the update pipeline. The expected
 // transition graph is:
 //
 //                  on-demand                on-demand
 //   +---------------------------> kNew <--------------+-------------+
 //   |                              |                  |             |
 //   |                              V                  |             |
@@ skipping 71 matching lines @@
   // error itself.
   int error_category;
   int error_code;
   int extra_code1;
   int diff_error_category;
   int diff_error_code;
   int diff_extra_code1;
 
   std::vector<CrxDownloader::DownloadMetrics> download_metrics;
 
-  std::vector<base::WeakPtr<CUResourceThrottle> > throttles;
+  std::vector<base::Closure> ready_callbacks;
 
   CrxUpdateItem();
   ~CrxUpdateItem();
 
   // Function object used to find a specific component.
   class FindById {
    public:
     explicit FindById(const std::string& id) : id_(id) {}
 
     bool operator()(CrxUpdateItem* item) const { return item->id == id_; }
 
    private:
     const std::string& id_;
   };
 };
 
 }  // namespace component_updater
 
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_CRX_UPDATE_ITEM_H_