Select a more appropiate appcache based on the opener or the parent of the new document.

webkit/appcache/web_application_cache_host_impl.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 WEBKIT_APPCACHE_WEB_APPLICATION_CACHE_HOST_IMPL_H_
 #define WEBKIT_APPCACHE_WEB_APPLICATION_CACHE_HOST_IMPL_H_
 
 #include <string>
 #include "base/time.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebApplicationCacheHostClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebURLResponse.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebVector.h"
 #include "webkit/appcache/appcache_interfaces.h"
 
 namespace WebKit {
 class WebFrame;
 }
 
 namespace appcache {
 
 class WebApplicationCacheHostImpl : public WebKit::WebApplicationCacheHost {
  public:
   // Returns the host having given id or NULL if there is no such host.
   static WebApplicationCacheHostImpl* FromId(int id);
 
   // Returns the host associated with the current document in frame.
-  static WebApplicationCacheHostImpl* FromFrame(WebKit::WebFrame* frame);
+  static WebApplicationCacheHostImpl* FromFrame(const WebKit::WebFrame* frame);
 
   WebApplicationCacheHostImpl(WebKit::WebApplicationCacheHostClient* client,
                               AppCacheBackend* backend);
   virtual ~WebApplicationCacheHostImpl();
 
   int host_id() const { return host_id_; }
   AppCacheBackend* backend() const { return backend_; }
   WebKit::WebApplicationCacheHostClient* client() const { return client_; }
 
   virtual void OnCacheSelected(const appcache::AppCacheInfo& info);
@@ skipping 37 matching lines @@
   IsNewMasterEntry is_new_master_entry_;
   appcache::AppCacheInfo cache_info_;
   GURL original_main_resource_url_;  // Used to detect redirection.
   bool was_select_cache_called_;
 };
 
 }  // namespace
 
 #endif  // WEBKIT_APPCACHE_WEB_APPLICATION_CACHE_HOST_IMPL_H_