Add a BeforeDestroyFrame notification method to WebViewDelegate

webkit/glue/webframe_impl.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 199 matching lines @@
   void set_plugin_delegate(WebPluginDelegate* plugin_delegate) {
     plugin_delegate_ = plugin_delegate;
   }
 
   WebCore::Frame* frame() const {
     return frame_;
   }
 
   static WebFrameImpl* FromFrame(WebCore::Frame* frame);
 
-  WebViewImpl* webview_impl() const {
-    return webview_impl_;
-  }
+  WebViewImpl* GetWebViewImpl() const;
 
   WebCore::FrameView* frameview() const {
     return frame_ ? frame_->view() : NULL;
   }
 
   // Update the given datasource with currently_loading_request's info.
   // If currently_loading_request is NULL, does nothing.
   void CacheCurrentRequestInfo(WebDataSourceImpl* datasource);
 
   void set_currently_loading_history_item(WebHistoryItemImpl* item);
@@ skipping 64 matching lines @@
 
   // Used to check for leaks of this object.
   static int live_object_count_;
 
   WebFrameLoaderClient frame_loader_client_;
 
   // This is a factory for creating cancelable tasks for this frame that run
   // asynchronously in order to scope string matches during a find operation.
   ScopedRunnableMethodFactory<WebFrameImpl> scope_matches_factory_;
 
-  // This is a weak pointer to our containing WebViewImpl.
-  WebViewImpl* webview_impl_;
-
   // This is a weak pointer to our corresponding WebCore frame.  A reference to
   // ourselves is held while frame_ is valid.  See our Closing method.
   WebCore::Frame* frame_;
 
   // This holds the request passed to LoadRequest, for access by the
   // WebFrameLoaderClient.  Unfortunately we have no other way to pass this
   // information to him.  Only non-NULL during a call to LoadRequest.
   const WebRequest* currently_loading_request_;
 
   // Similar to currently_loading_request_, except this will be set when
@@ skipping 109 matching lines @@
   // The input fields that are interested in edit events and their associated
   // listeners.
   typedef HashMap<RefPtr<WebCore::HTMLInputElement>,
       webkit_glue::PasswordAutocompleteListener*> PasswordListenerMap;
   PasswordListenerMap password_listeners_;
 
   DISALLOW_COPY_AND_ASSIGN(WebFrameImpl);
 };
 
 #endif  // WEBKIT_GLUE_WEBFRAME_IMPL_H_