Add a BeforeDestroyFrame notification method to WebViewDelegate

webkit/glue/webview_impl.cc

 /*
 * Copyright 2007 Google Inc. All Rights Reserved.
 *
 * Portions Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 *
 * ***** BEGIN LICENSE BLOCK *****
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
@@ skipping 867 matching lines @@
   }
   return scroll_handled;
 }
 
 Frame* WebViewImpl::GetFocusedWebCoreFrame() {
   return page_.get() ? page_->focusController()->focusedOrMainFrame() : NULL;
 }
 
 // static
 WebViewImpl* WebViewImpl::FromPage(WebCore::Page* page) {
-  return WebFrameImpl::FromFrame(page->mainFrame())->webview_impl();
+  return WebFrameImpl::FromFrame(page->mainFrame())->GetWebViewImpl();
 }
 
 // WebView --------------------------------------------------------------------
 
 bool WebViewImpl::ShouldClose() {
   // TODO(creis): This should really cause a recursive depth-first walk of all
   // frames in the tree, calling each frame's onbeforeunload.  At the moment,
   // we're consistent with Safari 3.1, not IE/FF.
   Frame* frame = page_->focusController()->focusedOrMainFrame();
   if (!frame)
@@ skipping 1051 matching lines @@
 
   return document->focusedNode();
 }
 
 HitTestResult WebViewImpl::HitTestResultForWindowPos(const IntPoint& pos) {
   IntPoint doc_point(
       page_->mainFrame()->view()->windowToContents(pos));
   return page_->mainFrame()->eventHandler()->
       hitTestResultAtPoint(doc_point, false);
 }