AppCacheHost cache selection algorithm

webkit/appcache/web_application_cache_host_impl.cc

 // Copyright (c) 2006-2008 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 "webkit/appcache/web_application_cache_host_impl.h"
 
 #include "base/compiler_specific.h"
 #include "base/id_map.h"
 #include "webkit/api/public/WebURL.h"
 #include "webkit/api/public/WebURLRequest.h"
@@ skipping 86 matching lines @@
   }
 
   // Check for new 'master' entries.
   if (main_response_.appCacheID() == kNoCacheId) {
     should_capture_main_response_ = is_in_http_family_ ? YES : NO;
     backend_->SelectCache(host_id_, main_response_url_,
                           kNoCacheId, manifest_gurl);
     return true;
   }
 
+  DCHECK(should_capture_main_response_ == NO);
+
   // Check for 'foreign' entries.
   GURL main_response_manifest_gurl(main_response_.appCacheManifestURL());
   if (main_response_manifest_gurl != manifest_gurl) {
     backend_->MarkAsForeignEntry(host_id_, main_response_url_,
                                  main_response_.appCacheID());
-    selectCacheWithoutManifest();
+    has_cached_status_ = true;
+    cached_status_ = UNCACHED;
     return false;  // the navigation will be restarted
   }
 
   // Its a 'master' entry thats already in the cache.
   backend_->SelectCache(host_id_, main_response_url_,
                         main_response_.appCacheID(),
                         manifest_gurl);
   return true;
 }
 
@@ skipping 48 matching lines @@
 
 bool WebApplicationCacheHostImpl::startUpdate() {
   return backend_->StartUpdate(host_id_);
 }
 
 bool WebApplicationCacheHostImpl::swapCache() {
   return backend_->SwapCache(host_id_);
 }
 
 }  // appcache namespace