Store the service worker script and its imports on first load... kinda

content/browser/service_worker/service_worker_script_cache_map.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 CONTENT_BROWSER_SERVICE_WORKER_SERVICE_SCRIPT_CACHE_MAP_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_SCRIPT_CACHE_MAP_H_
 
 #include <map>
+#include <vector>
 
 #include "base/basictypes.h"
-#include "base/observer_list.h"
+#include "content/browser/service_worker/service_worker_database.h"
 
 class GURL;
 
 namespace content {
 
 class ServiceWorkerVersion;
 
 // Class that maintains the mapping between urls and a resource id
 // for a particular versions implicit script resources.
 class ServiceWorkerScriptCacheMap {
  public:
-  class Observer {
-   public:
-    // Notification that the main script resource has been written to
-    // the disk cache. Only called when a version is being initially
-    // installed.
-    virtual void OnMainScriptCached(ServiceWorkerVersion* version,
-                                    bool success) = 0;
-
-    // Notification that the main script resource and all imports have
-    // been written to the disk cache. Only called when a version is
-    // being initially installed.
-    virtual void OnAllScriptsCached(ServiceWorkerVersion* version,
-                                    bool success) = 0;
-  };
-
   int64 Lookup(const GURL& url);
 
-  // Adds and removes Observers.
-  void AddObserver(Observer* observer);
-  void RemoveObserver(Observer* observer);
-
   // Used during the initial run of a new version to build the map
   // of resources ids.
-  // TODO(michaeln): Need more info about errors in Finished.
   void NotifyStartedCaching(const GURL& url, int64 resource_id);
   void NotifyFinishedCaching(const GURL& url, bool success);
-  void NotifyEvalCompletion();
+
+  // Used to retrieve the results of the initial run of a new version.
+  bool HasError() const { return has_error_; }
+  void GetResources(
+      std::vector<ServiceWorkerDatabase::ResourceRecord>* resources);
+
+  // Used when loading an existing version.
+  void SetResources(
+     const std::vector<ServiceWorkerDatabase::ResourceRecord>& resources);
 
  private:
   typedef std::map<GURL, int64> ResourceIDMap;
 
   // The version objects owns its script cache and provides a rawptr to it.
   friend class ServiceWorkerVersion;
   explicit ServiceWorkerScriptCacheMap(ServiceWorkerVersion* owner);
   ~ServiceWorkerScriptCacheMap();
 
   ServiceWorkerVersion* owner_;
   ResourceIDMap resource_ids_;
-
-  // Members used only during initial install.
-  bool is_eval_complete_;
-  int resources_started_;
-  int resources_finished_;
   bool has_error_;
-  ObserverList<Observer> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerScriptCacheMap);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_SCRIPT_CACHE_MAP_H_