AppCacheHost cache selection algorithm

chrome/common/appcache/appcache_dispatcher_host.cc

 // Copyright (c) 2009 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.
 
 #include "chrome/common/appcache/appcache_dispatcher_host.h"
 
 #include "chrome/common/appcache/chrome_appcache_service.h"
 #include "chrome/common/render_messages.h"
 
 AppCacheDispatcherHost::AppCacheDispatcherHost(
@@ skipping 28 matching lines @@
     IPC_MESSAGE_HANDLER(AppCacheMsg_SelectCache, OnSelectCache);
     IPC_MESSAGE_HANDLER(AppCacheMsg_MarkAsForeignEntry, OnMarkAsForeignEntry);
     IPC_MESSAGE_HANDLER_DELAY_REPLY(AppCacheMsg_GetStatus, OnGetStatus);
     IPC_MESSAGE_HANDLER_DELAY_REPLY(AppCacheMsg_StartUpdate, OnStartUpdate);
     IPC_MESSAGE_HANDLER_DELAY_REPLY(AppCacheMsg_SwapCache, OnSwapCache);
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
   return handled;
 }
 
+// TODO(michaeln): Handle the invalid host id error condition, probably
+// terminate the child process.
+
 void AppCacheDispatcherHost::OnRegisterHost(int host_id) {
   if (appcache_service_.get())
     backend_impl_.RegisterHost(host_id);
 }
 
 void AppCacheDispatcherHost::OnUnregisterHost(int host_id) {
   if (appcache_service_.get())
     backend_impl_.UnregisterHost(host_id);
 }
 
@@ skipping 56 matching lines @@
   IPC::Message* reply_msg = reinterpret_cast<IPC::Message*>(param);
   AppCacheMsg_StartUpdate::WriteReplyParams(reply_msg, result);
   frontend_proxy_.sender()->Send(reply_msg);
 }
 
 void AppCacheDispatcherHost::SwapCacheCallback(bool result, void* param) {
   IPC::Message* reply_msg = reinterpret_cast<IPC::Message*>(param);
   AppCacheMsg_SwapCache::WriteReplyParams(reply_msg, result);
   frontend_proxy_.sender()->Send(reply_msg);
 }