Loading from the "most appropiate" appcache.

content/common/appcache/appcache_backend_proxy.h

 // Copyright (c) 2011 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_COMMON_APPCACHE_APPCACHE_BACKEND_PROXY_H_
 #define CONTENT_COMMON_APPCACHE_APPCACHE_BACKEND_PROXY_H_
 #pragma once
 
 #include "ipc/ipc_message.h"
 #include "webkit/appcache/appcache_interfaces.h"
 
 // Sends appcache related messages to the main process.
 class AppCacheBackendProxy : public appcache::AppCacheBackend {
  public:
   explicit AppCacheBackendProxy(IPC::Message::Sender* sender)
       : sender_(sender) {}
 
   IPC::Message::Sender* sender() const { return sender_; }
 
   // AppCacheBackend methods
   virtual void RegisterHost(int host_id);
   virtual void UnregisterHost(int host_id);
+  virtual void SetSpawningHostId(int host_id, int spawning_host_id);
   virtual void SelectCache(int host_id,
                            const GURL& document_url,
                            const int64 cache_document_was_loaded_from,
                            const GURL& manifest_url);
   virtual void SelectCacheForWorker(
                            int host_id,
                            int parent_process_id,
                            int parent_host_id);
   virtual void SelectCacheForSharedWorker(
                            int host_id,
                            int64 appcache_id);
   virtual void MarkAsForeignEntry(int host_id, const GURL& document_url,
                                   int64 cache_document_was_loaded_from);
   virtual appcache::Status GetStatus(int host_id);
   virtual bool StartUpdate(int host_id);
   virtual bool SwapCache(int host_id);
   virtual void GetResourceList(
       int host_id,
       std::vector<appcache::AppCacheResourceInfo>* resource_infos);
 
  private:
   IPC::Message::Sender* sender_;
 };
 
 #endif  // CONTENT_COMMON_APPCACHE_APPCACHE_BACKEND_PROXY_H_