Implement EmbeddedWorkerContextClient.setCachedMetadata/clearCachedMetadata

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_WORKER_SCRIPT_CACHE_MAP_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/service_worker/service_worker_database.h"
 #include "content/common/content_export.h"
+#include "net/base/completion_callback.h"
 #include "net/url_request/url_request_status.h"
 
 class GURL;
 
 namespace content {
 
 class ServiceWorkerContextCore;
 class ServiceWorkerVersion;
+class ServiceWorkerResponseMetadataWriter;
 
 // Class that maintains the mapping between urls and a resource id
 // for a particular version's implicit script resources.
 class CONTENT_EXPORT ServiceWorkerScriptCacheMap {
  public:
   int64 LookupResourceId(const GURL& url);
   // A size of -1 means that we don't know the size yet
   // (it has not finished caching).
   int64 LookupResourceSize(const GURL& url);
 
   // Used during the initial run of a new version to build the map
   // of resources ids.
   void NotifyStartedCaching(const GURL& url, int64 resource_id);
   void NotifyFinishedCaching(const GURL& url,
                              int64 size_bytes,
                              const net::URLRequestStatus& status,
                              const std::string& status_message);
 
   // Used to retrieve the results of the initial run of a new version.
   void GetResources(
       std::vector<ServiceWorkerDatabase::ResourceRecord>* resources);
 
   // Used when loading an existing version.
   void SetResources(
      const std::vector<ServiceWorkerDatabase::ResourceRecord>& resources);
 
+  // Writes the metadata of the existing script.
+  void WriteMetadata(const GURL& url,
+                     const std::vector<char>& data,
+                     const net::CompletionCallback& callback);
+  // Clears the metadata of the existing script.
+  void ClearMetadata(const GURL& url, const net::CompletionCallback& callback);
+
   size_t size() const { return resource_map_.size(); }
 
   const net::URLRequestStatus& main_script_status() const {
     return main_script_status_;
   }
 
   const std::string& main_script_status_message() const {
     return main_script_status_message_;
   }
 
  private:
   typedef std::map<GURL, ServiceWorkerDatabase::ResourceRecord> ResourceMap;
 
   // The version objects owns its script cache and provides a rawptr to it.
   friend class ServiceWorkerVersion;
   ServiceWorkerScriptCacheMap(
       ServiceWorkerVersion* owner,
       base::WeakPtr<ServiceWorkerContextCore> context);
   ~ServiceWorkerScriptCacheMap();
 
+  void OnMetadataWritten(scoped_ptr<ServiceWorkerResponseMetadataWriter> writer,
+                         const net::CompletionCallback& callback,
+                         int);

[michaeln, 2015/02/18 03:37:34]

name the last arg

[horo, 2015/02/18 04:17:06]

Done.

+
   ServiceWorkerVersion* owner_;
   base::WeakPtr<ServiceWorkerContextCore> context_;
   ResourceMap resource_map_;
   net::URLRequestStatus main_script_status_;
   std::string main_script_status_message_;
 
+  base::WeakPtrFactory<ServiceWorkerScriptCacheMap> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerScriptCacheMap);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_