Add WebDataSource::appendRedirect for cross-process redirects.

Source/web/WebDataSourceImpl.cpp

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 63 matching lines @@
 bool WebDataSourceImpl::hasUnreachableURL() const
 {
     return !DocumentLoader::unreachableURL().isEmpty();
 }
 
 WebURL WebDataSourceImpl::unreachableURL() const
 {
     return DocumentLoader::unreachableURL();
 }
 
+void WebDataSourceImpl::appendRedirect(const WebURL& url)
+{
+    DocumentLoader::appendRedirect(url);
+}
+
 void WebDataSourceImpl::redirectChain(WebVector<WebURL>& result) const
 {
     result.assign(m_redirectChain);
 }
 
 bool WebDataSourceImpl::isClientRedirect() const
 {
     return DocumentLoader::isClientRedirect();
 }
 
@@ skipping 80 matching lines @@
 
     ASSERT(nextPluginLoadObserver()->url() == WebURL(request.url()));
     m_pluginLoadObserver = nextPluginLoadObserver().release();
 }
 
 WebDataSourceImpl::~WebDataSourceImpl()
 {
 }
 
 } // namespace WebKit